Scientific – Listorati https://listorati.com Fascinating facts and lists, bizarre, wonderful, and fun Sun, 26 Jan 2025 05:44:58 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://listorati.com/wp-content/uploads/2023/02/listorati-512x512-1.png Scientific – Listorati https://listorati.com 32 32 215494684 10 Unusual Finds That Challenged Scientific Beliefs https://listorati.com/10-unusual-finds-that-challenged-scientific-beliefs/ https://listorati.com/10-unusual-finds-that-challenged-scientific-beliefs/#respond Sun, 26 Jan 2025 05:44:58 +0000 https://listorati.com/10-unusual-finds-that-challenged-scientific-beliefs/

Plenty of truths pretend to be mysteries or facts. Dedicated researchers whittle away at puzzles, sometimes making great new finds without solving the whole shebang.

However, real progress means ousting the pretenders—those pesky facts that convince scholars of their authenticity for years when, in reality, they are mere misconceptions. From a dangerous vitamin everyone loves to herbivores eating their friends, the simplest of facts are no longer so simple.

10 The Aging Plateau

A widely accepted concept is late-life mortality deceleration. According to this theory, some people get so old that even their aging slows down. This “aging plateau” means that, statistically, a 105-year-old has no greater chance of dying than a person who is 90. The process is not fully understood or even unanimously explained.[1]

In 2018, the plateau was challenged. Opposing researchers claimed that the age surveys supporting the “phenomenon” were faulty. There was a good chance that some seniors had their ages recorded incorrectly. A deliberate demonstration showed that just a few incorrect entries could skew the outcome in a big way.

An actual study done on the life span of Italians found evidence of the plateau but also matched a hypothetical outcome if 1 in 500 people had their ages wrongly listed. However, each would need to be grossly misreported and the study worked with a hypothetical scenario, not actual survey mistakes. Either way, somebody is wrong.

9 China’s Ozone Problem

In 2013, China’s smog problem was so bad that skylines vanished from cities. Within four years, the country achieved the remarkable feat of lowering eastern China’s concentrations of PM 2.5 particles by 40 percent. These ultrafine boogers are dangerous to the human respiratory system.

However, the progressive step turned dark. In a move that nobody could predict, ozone levels increased in the cities. High up in the sky, ozone is great. At ground level, it qualifies as air pollution. In fact, ozone is a really bad thing to inhale.

A survey found that China’s megacities, including Beijing and Shanghai, were swamped with this potent pollution. The reason? The well-meaning attempt to remove the PM 2.5 particles also eradicated the very thing that soaked up the chemicals that produce ozone. All this time, the PM 2.5 fog had acted like a giant sponge that kept it under control.[2]

8 Nun With Blue Teeth

Around AD 1100, a nun died at a monastery in Dalheim, Germany. When researchers recently examined her skull, they found something odd. The woman, who was between 45 and 60, had blue stains on her teeth.

X-ray spectroscopy revealed that the flecks were lapis lazuli, a semiprecious stone that was prized during the Middle Ages. It was the main ingredient in ultramarine, a rare and expensive blue paint. Ultramarine was used solely for the lavish decoration of religious books. Only the most skilled painters were allowed to use it.

The pigment saturated layers of the nun’s dental plaque thanks to years of licking paintbrushes. This technique was known to be used by painters when they faced particularly detailed work. However, it is the first physical proof of the habit.[3]

Additionally, it proved that nuns also worked on religious manuscripts, a domain thought to belong to monks. Since lapis lazuli only came from mines in Afghanistan 4,800 kilometers (3,000 mi) away, it also revealed that Germany and Asia had extensive trade links almost 1,000 years ago.

7 Extra Denisovan Pulses

Scientists have known for a long time that humans interbred with two ancient hominids. Although the Neanderthals and Denisovans are extinct as individual species, their DNA continues in certain populations today. Our gene map shows two “pulses,” or sudden concentrations of hominid interbreeding. Both happened in Siberia’s Altai region thousands of years ago.

In 2018, a study searched for a third interbreeding event by examining the genetic codes of 5,500 volunteers from Asia, Europe, and Oceania. They found enough foreign hominid DNA to prove that Siberia was not the only place where humans absorbed pulses. In a surprising twist, Denisovan influence occurred twice outside the Altai Mountains.

Barely any fossils of these rare hominids exist. Yet, back in the day, they were plentiful enough to mingle heavily with humans who traveled across South Asia. The groundbreaking study found a Denisovan pulse to the north in living Chinese, Japanese, and Vietnamese. Another pulse showed up to the south, likely the result of humans meeting Denisovans while migrating to Papua New Guinea.[4]

6 Paternal Mitochondrial DNA

Mitochondria nest inside cells and also provide them with energy. As a rule, people only inherit their mother’s mitochondrial DNA. The father’s is destroyed after conception.

In 2018, a new study challenged this concrete belief. Although maternal inheritance is a given, it would appear that the father’s mitochondrial DNA can do three things—avoid the next generation completely, pass on a tiny amount, or almost entirely eclipse the mother’s. This mercurial behavior challenges everything researchers know about this genetic material.

The Cincinnati study found 17 people who inherited it from both parents, and this finally lends some credence to a 2002 case from Denmark. This man appeared to have inherited 90 percent of his father’s mitochondrial DNA, but everyone thought it was a technical error.[5]

Interestingly, it could be a family thing. The Cincinnati hospital also found the biparental inheritance in 10 people over three generations from the same family.

5 Meat-Eating Hares

Canada’s snowshoe hares are supposed to be herbivores. A recent study accidentally uncovered the hairy truth. Not only do they eat meat, but the hares are also cannibals.

Researchers rigged a remote trail near the Alaskan border with cameras. They put out hare carcasses as bait and hoped to capture photos of predators scavenging on them.

Over a period of 2.5 years, 20 dead hares were consumed by their living brethren. For the first time, the photographs captured this unexpected, if not shocking scavenging behavior in hares. Researchers also found that winter-hungry hares were not picky about the species. In one case, they even ate their main predator—a dead Canada lynx.[6]

This meaty turn appears to be a survival strategy rather than preference. During the summer, snowshoe hares nibble exclusively on vegetation. Winter turns the region into one of the coldest on Earth. When foliage becomes scarce in such conditions, any protein is welcome.

Bizarrely, the hares also consumed feathers from dead birds. The reason remains unknown as feathers offer little nutrition.

4 How Tornadoes Really Form

Conventional belief teaches that a tornado forms inside the clouds and then grows a funnel down to the ground. A study released in 2018 told a different story. Tornadoes start on the ground.

For years, climatologists chased the deadly swirls and four spawned by rare supercell storms changed the game. Tornado intensity ranges from EF1 to EF5. A pair was recorded in 2012 in Kansas—both babies at EF1. An EF3 hit Oklahoma in 2011. A monster swept through El Reno in 2013. This EF5 was the widest tornado ever recorded, measuring 4.2 kilometers (2.6 mi).

Researchers had a hilltop view of the giant which allowed them to capture the moment of its birth. The high-tech equipment found signs that the tornado formed 10 meters (32 ft) above the ground. Droves of storm chasers provided photos of the event, which also supported the finding.[7]

This prompted a closer look at the data. Soon, it became clear that wind rotation began on the ground long before anything churned in the clouds. The other three tornadoes showed similar data.

3 Lizard That Breathes Underwater

A group of lizards called anoles fascinate researchers so much that thousands of studies have been done on them in the past 50 years. Despite being thoroughly studied, one species did something so strange that scientists had no answer. The Costa Rican river anole disappears underwater for up to 15 minutes. The best assumption was that they could hold their breath really well.

In 2018, biologists worked with filmmakers to try to solve the mystery. What they captured was astonishing. For the first time, the footage revealed that the anoles did not stop breathing once they had sunk to the bottom.[8]

Instead, the female they filmed had a bubble on her head. For 10 minutes, it grew and shrank repeatedly, almost as if she were recycling the air within. This behavior had never been seen in lizards or any species with a spine. As astonishing as it was to find an anole with its very own “diver’s tank,” scientists do not know how the oxygen is stored or exactly how they tap into the bubble.

2 Vitamin D Is Not A Vitamin

Vitamin D is the darling of thousands. For decades, governments and doctors encouraged swallowing more of this wonder vitamin, linking it to a host of benefits and disease prevention. In recent times, scientists focused on a particular benefit—the prevention of bone fractures. As the largest study of its kind, it involved over 500,000 people and 188,000 fractures. No evidence was found that vitamin D stopped breaks from happening.

The truth about this supplement is scary. It is not a true vitamin but an unsafe steroid. The popularity comes from outdated studies in the 1980s and marketing skills of food manufacturers and vitamin companies.[9]

Apart from taking increasingly stronger dosages, people get extra vitamin D through exposure to sunshine and food. For this reason, clinics see a rise in overdose cases. At the lower end of the problem, nobody really knows what qualifies as a vitamin D deficiency. Ironically, several studies have shown that dosages above 800 IU actually increased the chance of a fracture.

1 Mona Lisa‘s Gaze

So many people have claimed that Leonardo da Vinci’s painting has stared at them that the phenomenon became known as the “Mona Lisa effect.” Her gaze is said to follow observers no matter where they are in the room.

When researchers recently worked on artificial intelligence programs, they wanted the avatars to really look at people. Due to her famous “effect,” the Mona Lisa was included in the study. At one point, the team realized that she was not gazing soulfully at any of them.

To confirm this, they asked volunteers to view the painting on a computer. A ruler in front of the screen carried numbers, and participants picked the one which intersected with her stare. The ruler was then moved to a second point, and the exercise was repeated.[10]

The two sets of answers gave researchers an angle. Mona Lisa does not stare at anyone. Her gaze is 15.4 degrees to the right of observers. The real mystery is why people continue to believe otherwise.



Jana Louise Smit

Jana earns her beans as a freelance writer and author. She wrote one book on a dare and hundreds of articles. Jana loves hunting down bizarre facts of science, nature and the human mind.


Read More:


Facebook Smashwords HubPages

]]>
https://listorati.com/10-unusual-finds-that-challenged-scientific-beliefs/feed/ 0 17582
10 Amazing New Techniques Used To Reveal Scientific Mysteries https://listorati.com/10-amazing-new-techniques-used-to-reveal-scientific-mysteries/ https://listorati.com/10-amazing-new-techniques-used-to-reveal-scientific-mysteries/#respond Tue, 24 Dec 2024 02:46:46 +0000 https://listorati.com/10-amazing-new-techniques-used-to-reveal-scientific-mysteries/

New technologies and innovations linked to old ones are unlocking scientific mysteries in ways never thought possible. These revolutionary new techniques are allowing unprecedented insight into the natural world.

Whether they reveal an obscure and unseen galaxy billions of light-years away or a cryptic message from millennia ago, these pioneering methods are game changers in their fields.

10 Photographing Hidden Spaces With Wi-Fi

Researchers wanted to see the world “through Wi-Fi eyes,” so they placed a cross made of aluminum foil, a Wi-Fi emitter, and two receivers (one stationary, one mobile) in a closed room. They recorded the Wi-Fi waves as they reflected off the cross to encode its image in 3-D within a hologram.[1]

This technique could eventually reveal the interiors of closed structures even if the receivers are placed outside, with lifesaving consequences for victims trapped under snow or in collapsed buildings. Alternatively, in 5–10 years, Wi-Fi surveillance may be used to organize and supervise factories full of robot workers.

9 Revealing Hidden Space Scenes 10 Million Times Faster With AI

Large enough objects like galaxy clusters can bend light around them, revealing and magnifying the objects behind them.

“Reading” a single lens can take months of work and many tedious comparisons between actual images and numerous computer simulations. But neural networks, or artificial brains based on biology, can decode these lenses 10 million times faster—in a few seconds instead of months.

Scientists fed the aforementioned AI half a million simulated images and tested it against Hubble images. The AI proved itself as accurate as traditional analysis but in a fraction of the time. This tech will open up the universe like never before, with an unprecedented amount of data set to flood in from the next generation of observatories and telescopes.[2]

8 Peering Through Solid Objects With Neutron Beams

A brand-new imaging technique peers through solid objects by hitting them with a focused beam of neutrons.

Instead of a conventional lens, the new technology uses silicon wafers to split and redirect a neutron beam. The waves strike the object and ricochet into each other, producing an interference pattern.

Unlike other methods, this revolutionary type of neutron interferometry can zoom in and out to detect very small and very, very small objects alike, ranging from 1 nanometer to 10 micrometers. Neutron interferometry was previously a supplement to other imaging efforts, but this advance may turn it into a unique “main course” option.[3]

7 Turning (Dead) Animals Transparent To Glimpse Hidden Biology

An imaging technique named uDISCO (ultimate 3-D imaging of solvent-cleared organs) turns dead animals transparent to unveil biology’s inner workings.

Scientists dunk the animal into a dehydrating solvent that removes water and fat, which shrinks the specimen up to 65 percent and effectively turns it into a translucent mummy.

It doesn’t damage fluorescent proteins engineered into the rodents’ bodies like previous techniques did, so scientists can observe these markers once the animal has been transpar-ified. They hope to use this to one day map the human brain, a feat that would take 1,000 years with conventional methods.[4]

6 Mapping An Entire Country Using Lasers

The entirety of England is being mapped by aerial lasers, or LiDAR, a technique that has already scanned 75 percent of the country. From above, researchers pelt the landscape with a million light wave pulses per second, building a 3-D topographical map based on the waves’ return time.

It began as an effort to map changing coastlines. But as an added bonus, it has revealed four Roman roads that snake invisibly beneath the modern terrain.

As a double bonus, it could disrupt the £1 billion a year illegal dumping racket by quickly detecting changes in landscape and allowing the authorities to apprehend dumpers.[5]

5 New X-Ray Methods Illuminating Invisible Art

Researchers can peer through layers of paint and reveal secrets beneath some of the world’s most famous masterpieces.

It started with Picasso’s 1902 oil painting La Misereuse accroupie, or The Crouching Beggar. Curious colors and textures peeking out from between cracks in the oil didn’t match the surface layers. So scientists shot different wavelengths of light at it because oil is transparent to some wavelengths. They confirmed a 1992 study that found another artist’s landscape beneath Picasso’s beggar.[6]

X-ray analysis then revealed an entirely new feature, that the women’s hand (obscured by the robe) is clutching a piece of bread. More revelations will undoubtedly follow now that scientists can use this method in situ at museums and such.

4 Detecting CTE And Brain Damage In The Living

For the first time ever, researchers have confirmed the detection of chronic traumatic encephalopathy (CTE) in a living patient.

The patient, along with 13 other ex-NFL athletes, underwent brain scans. They revealed a protein called tau which smothers damaged cells and migrates across the brain, killing neurons.

In 2015, one of the retired players in the study, identified as former Minnesota Vikings linebacker Fred McNeill, died. The autopsy confirmed that McNeill was suffering from CTE as well as ALS, or Lou Gehrig’s disease.[7]

If validated, such technology would be good for more people than just ex-athletes. It would also benefit the military by detecting brain irregularities in soldiers exposed to the concussive forces of an explosion, for example.

3 Exposing Cancerous Cells With A Pen

One of the trickiest parts of treating cancer is making sure that every unwanted cell is removed during surgery. Now, a new pen-like device can scan potentially infected areas 150 times faster than current methods.

In proof-of-concept testing on 253 patients, the “MasSpec pen” detected cancerous tissues with 96 percent accuracy and it did so in only 10 seconds.

The pen releases a drop of water onto suspect tissues and then drives it into a mass spectrometer to detect the telltale waste products produced by cancerous cells, even specifying their subtype.

If approved for widespread use, the MasSpec Pen will offer faster, more precise, and safer surgery.[8]

2 Peeking Inside Mummies With A Particle Accelerator

Researchers can now look inside mummies without damaging them, thanks to the Argonne National Laboratory’s Advanced Photon Source, a particle accelerator.

For the first time ever, scientists trained the high-energy X-rays on the Hibbard mummy, a five-year-old Egyptian girl, which dated to the end of the first century AD.[9]

The Hibbard mummy was chosen because of its intact “mummy portrait,” a wooden face panel with a painting of the child’s likeness. Without disturbing the brittle material, researchers saw through its shroud and found unexplained objects therein, like wires in the girl’s teeth, a weird bowl-shaped object in her skull, and some kind of small stonelike item wrapped to the girl’s abdomen.

1 Unrolling Ancient Scrolls With Novel X-Ray Tech

Pompeii wasn’t the only town buried by Vesuvius’s famous outburst: Little Herculaneum was also smothered by hot ash and lava.

As were its legendary scrolls of Herculaneum, part of the world’s oldest surviving classical library. Unfortunately, they were crisped by temperatures exceeding 260 degrees Celsius (500 °F). Recently, scientists were able to read the letters on one of these scrolls despite its 2,000-year interment and volcanic ash bath.

Scientists analyzed the distortion of X-rays as they passed through different materials. Like the letters on the scroll, which didn’t penetrate into the papyrus and remained in relief by an amazingly tiny tenth of a millimeter, just enough to allow detection.[10]

Ivan writes cool things for the Internet. He’ll write cool things for you, too, if you contact him at [email protected] and pay him in food or money.

]]>
https://listorati.com/10-amazing-new-techniques-used-to-reveal-scientific-mysteries/feed/ 0 16942
10 Ridiculously Elaborate Scientific Studies No One Asked For https://listorati.com/10-ridiculously-elaborate-scientific-studies-no-one-asked-for/ https://listorati.com/10-ridiculously-elaborate-scientific-studies-no-one-asked-for/#respond Sat, 23 Nov 2024 23:36:50 +0000 https://listorati.com/10-ridiculously-elaborate-scientific-studies-no-one-asked-for/

Often, scientific studies are meant to advance our understanding of the world, providing us with irreplaceable tools to solve our daily problems. Occasionally, though, science goes beyond the necessary and enters the realm of the ridiculous just because the scientists didn’t have anything better to do that day.

Ever hear a child ask stupid questions like: “What if birds pooped lying down?” Although most of us would laugh and ignore those questions, some scientists make a serious face and say, “Well, let’s find out.”

To know what we’re talking about, here are some of the most hilariously unnecessary scientific studies ever conducted.

10 How Different Are Apples And Oranges Really?

We’ve been comfortably using the supposed differences between apples and oranges in arguments at parties ever since someone came up with the simile ” . . . like comparing apples and oranges.” It makes sense, too, as they look and taste quite different and it serves the purpose of the argument well. That clearly didn’t sit well with surgeon James E. Barone, who decided to take a closer look at the whole thing.

As it turns out, according to an elaborate paper that was presented at the Connecticut Society of American Board Surgeons, apples and oranges are actually quite similar. After carrying out experiments—presumably hunched over their work desks for hours and looking all serious—they concluded that the only difference between apples and oranges was in their color and type of seeds. Otherwise, they might as well be the same fruit.

Thanks to them, we’re back to having no phrase to compare two seemingly unrelated things in casual conversations.[1]

9 How Do Shrimps Fare Walking On A Treadmill?

What do you think when you look at shrimp?

For the foodies, it may be all about their texture and what they could be paired with. For the casual observer, they may look like just another one of the countless marine species that have no significant impact on our lives. For the scientists who carried out this study, though, the first question that came to their minds was: “So what if we put them on a treadmill?”

Under the guise of studying the effects of stress on marine life when they were only trying to decisively answer a ridiculous question by one of their kids, a couple of scientists injected some shrimp with bacterial infections and put them on a tiny underwater treadmill to see what would happen.

In a result that would not surprise—or even interest—anyone anywhere whatsoever, they concluded that uninfected shrimp performed better than their infected counterparts. The best (or worst) part? The study got $682,570 of taxpayer funding from the National Science Foundation.[2]

8 Is It Better To Smash An Empty Or Full Beer Bottle On Someone’s Head?

Anyone who has ever been in a bar fight would remember the things that were going through his head at the time: “What’s happening?” “Am I bleeding?” “How will I get home?”

These are probably the most common things, though we can surely say that the science of what kind of beer bottles you should use to smash someone’s head wasn’t one of them. For the scientists who went forward and conducted that exact study, however, it was a question worth answering.

They took full as well as empty half-liter beer bottles and conducted a stress test on them in a drop tower, which tells us that they really prepared for this. As they found out, empty beer bottles broke at 40 J of energy and full ones at 30 J.

If that sounds like a significant difference, it’s really not. Both of those are enough to fracture the human skull, something that bar brawlers have known since bars (or beer bottles) were invented.[3]

7 How To Pee To Avoid Splash Back?

For all the men out there, peeing in unfamiliar washrooms has always been a sort of gamble. One of the reasons is the splash-back mechanics of the pot. You never know how much of it you’re going to get on your shoes and pants, and we’ve all really made peace with the fact.

Is it worth spending resources and conducting a full-fledged scientific study on? No, most men would say—but not these three scientists who believe it’s a problem worth investigating.

In a study conducted at Brigham Young University in the appropriately named Splash Lab, they 3-D-printed a urethra and did all kinds of elaborate experiments to determine exactly what causes the worst kind of splash back. And by “elaborate,” we mean “elaborate”—with a team of scientists and a full-fledged lab setup.[4]

They determined that the size of the pee droplets or the speed with which you pee doesn’t matter at all. Rather, it’s about the angle, even if most of us would have figured that out on one of our drunk nights without any lab equipment whatsoever.

6 What’s The Mathematical Formula For Perfect Cheese On Toast?

Putting cheese on toast seems like a perfectly straightforward thing to do. You just take the cheese and the toast and . . . put the cheese on top of the toast.

Sure, some people may want it to be perfect and may go to some lengths to incorporate advanced cheese-putting techniques into their breakfast routine. But by and large, people don’t seem to, say, need a mathematical formula to do it.

The Royal Society of Chemistry along with the British Cheese Board vehemently disagrees, though. They actually have a mathematical formula—complete with complex variables and units of measurement that have no business being on a formula for cheese on toast—to perfectly do it.[5]

They tweaked the different variables—like the temperature and texture of the cheese—under strict lab conditions to come up with it, too, though we still maintain that there was absolutely no need for them to do so in the first place.

5 How To Walk Without Spilling Your Coffee?

Anyone who has ever had to get up from his desk and walk somewhere with a cup of coffee in one hand knows the problems that come with that decision. Unless you’re gifted at the art of balancing—or at least have spent considerable time practicing exactly that—there’s a good chance that you’ll spill some of it.

And for most of us, that’s a trade-off we’re willing to make as the more time that the coffee is in your immediate reach, the more coffee you can drink because coffee is awesome. Is the problem big enough for a scientific study, though? We don’t think so.

However, that’s not true for the scientists who have spent quite a bit of time trying to understand the physics behind coffee spills while walking. Using complex phrases like “fluid-structure interaction of the coffee cup,” “resonance region,” and “maximum spillage,” the study took an in-depth look into how we can optimize our walking-with-coffee experiences.

They concluded—totally without irony and presumably with straight faces—that one of the best ways to walk with coffee is to walk backward, even if you’d look stupid doing it and the spilling thing really is not that big of a problem anyway. They also suggest a clawlike hold of the cup to further improve the results.[6]

4 Take A Photo Without Anyone Blinking?

If you’re the designated photographer for any family gathering (it’s not because you’re ugly, we swear; you’re just very good at it), you’ll be familiar with the problem of that one person who always ends up blinking in the final image, no matter what you do.

It’s not always the same person, either. It can be anyone, and they probably didn’t even do it consciously (unless some evil person is actually timing their blinks with the click for the kicks).

What’s really a nonissue for most casual photographers, however, is something worth studying for CSIRO physicist Dr. Piers Barnes. He employed probability and calculus to come up with an equation to determine exactly how many photographs you’d need to take (with a 99 percent confidence level) to ensure that you get one without anybody blinking.

He determined that the greater the number of people in the photo, the higher the chances of unintentional blinks. If the number of people is in the mid-range, say somewhere around 20, you’d have to take about six photographs if the light is good and about 10 if it’s not.[7]

3 How Does Sitting For A Long Time Affect A Cow’s Ability To Stand Up?

We all know that cows are difficult to understand. You’re never sure what they want from just the expressions on their faces as they’re spectacularly devoid of any show of emotion. However, we can’t complain because they provide us with food and milk. They also laze about for a long time depending on how leisurely they’re feeling that day because, let’s face it, they’re cows and that’s what they do.

For the scientists who conducted this study, which was published in Applied Animal Behavior Science, there was evidently some scientific data to be collected among all the sitting down and standing up that the cows were doing, which the researchers set out to find. Data like “are cows that have been sitting down for a longer time more likely to stand up?”[8]

After recording and studying tens of thousands of instances of cows lying down with specially installed sensors, the scientists concluded that, yes, the longer a cow sits, the more likely it is to stand back up.

2 How Uncomfortable Is Wet Underwear Really?

If you’ve ever found yourself in the rain or jumped into the water without a change of clothes at hand, you’d know the trouble you’re in—wet undergarments. Despite our presumably best efforts to advance underwear tech, not much progress has been made on how to minimize that discomfort. It’s bad, but then it’s also something we learn to live with.

Except for these scientists, who were just not buying it. Does it really make you uncomfortable?

To get to the bottom of it, they set up a study of their own—complete with test subjects and verifiable scientific research. They took eight men, put them in wet underwear, and monitored their skin and rectal temperatures as well as weight loss during a 60-minute period. This included details like the rate of shivering and visible discomfort.

In a result that would not be called surprising in any way, they concluded that, yes, wet underwear does make you colder and more uncomfortable and the thickness of the material played a big role in the results.[9]

1 What’s Up With Navel Fluff?

The belly button serves no discernible purpose other than being part of the overall look of the body that we’d all look pretty creepy without. The only times we give it any attention are the few days we decide it needs to be cleaned out. Other than that, it’s sort of just there in the background.

If we asked you the exact nature of the fluff that accumulates there, most of us would reply with “probably dirt, who cares?” Though that’s not enough for this scientist from Vienna University of Technology, who spent over four years studying the precise contents of navel lint.

From 2005 to 2009, Georg Steinhauser collected 503 pieces of his own navel fluff and carefully studied it for clues as to what it could be. You can say that it turned into an obsession at some point as he also started asking other people about their navel fluff.

Hopefully, he added to his readings—or maybe he just weirded some people out for no reason. He concluded that the lint was actually directed by the type of hair found in the belly button and mostly came from the shirt or T-shirt he was wearing that day.[10]

Himanshu can be found shouting obscenities at strangers on Twitter @RudeRidingRomeo or making amateur drawings on Instagram @anartism_. He has written for Screen Rant, Forbes, Cracked, Modern Rogue, and Arre. Pay him money for writing stuff for you here: [email protected]



Himanshu Sharma

Himanshu has written for sites like Cracked, Screen Rant, The Gamer and Forbes. He could be found shouting obscenities at strangers on Twitter, or trying his hand at amateur art on Instagram.


Read More:


Twitter Facebook Instagram Email

]]>
https://listorati.com/10-ridiculously-elaborate-scientific-studies-no-one-asked-for/feed/ 0 16317
10 Unexpected Scientific Reasons Why Old People Are Awesome https://listorati.com/10-unexpected-scientific-reasons-why-old-people-are-awesome/ https://listorati.com/10-unexpected-scientific-reasons-why-old-people-are-awesome/#respond Mon, 11 Nov 2024 22:14:04 +0000 https://listorati.com/10-unexpected-scientific-reasons-why-old-people-are-awesome/

You may think that the elderly are inferior in every way and do nothing but drag society down. Well, get ready to throw all preconceptions out the window as research shows us just how awesome they really are.

10They Handle Stress Better Than Young People

01
Contrary to our view of elderly people as cranky old coots, findings say they actually exhibit a more optimistic outlook on life than their younger peers. Not only that, they can deal with stressful life events far better, readily accepting the outcome with less anger or anxiety.

Researcher Mary Shallcross explains these findings by noting that people acquire a wealth of experience in dealing with life’s unpleasantness over time. Thus, the older a person becomes, the more readily they accept the outcome of unpleasant events such as the deaths of loved ones.

However, this ability reaches its end with truly advanced age. In the final years of life, emotional health deteriorates.

9Overweight Seniors Live Longer

02
The elderly, just like everyone else, should strive to be healthy. But according to an Ohio State University study, older adults (especially those in their fifties) are actually better off with a few extra pounds on their waistlines.

Assistant sociology professor Hui Zheng found that slightly heavier adults outlive their slimmer peers of the same age range. Older people are more susceptible to disease and its accompanying weight loss. The few extra pounds could help stave off a potentially life-threatening loss of weight. Not only that, the extra weight would serve as a sort of emergency food supply for old people too sick to eat.

However, Zheng warns that the benefits apply only to slightly overweight people who maintain their weight. Overweight people who continue to pack on the pounds as they grow even older risk dying a lot earlier.

8Nostalgia Is Therapeutic

03
Ever had that grandpa or grandma who keeps telling you stories about the “good ol’ days?” If so, we’d forgive you for a natural hatred of nostalgia. Defined as a melancholic reflection on past events, nostalgia acquired a bad rap originally. It was first viewed as a medical disease in the 17th century and then a psychiatric disorder in the 20th century. However, modern researchers have found that nostalgia is actually beneficial, especially for the elderly.

University of Southampton psychologist Constantine Sedikide, notes that modern researchers are just really beginning to find out the psychological benefits of nostalgia. For one, it can help to battle the effects of loneliness, increasing an individual’s self-esteem. It can also serve as a bridge from the past to the present, keeping people in touch with reality and giving meaning to their lives.

7Old People Helped Mankind Evolve

04
The elderly have been instrumental to mankind’s evolution. According to anthropologist Rachel Caspari and her colleague Sang-Hee Lee, human evolution took a huge leap forward more than 30,000 years ago, specifically during a certain time period that saw a four-fold increase in the number of people going into old age.

Although the exact cause still remains unclear, the anthropologists speculate that the population explosion occurred when people decided to keep the old folks around to tend to their children and homes while the parents were out hunting and gathering. As a result, the survival rate of the elderly increased substantially.

With more and more old people settling down together, ideas and experiences could be shared and exchanged, resulting in a significant spread of information that would be felt by future generations. As Lee puts it, old people became the figurative computer hard drives for early mankind.

6They Still Get Plenty Of Sex

05
The idea that old people live a sex-free life couldn’t be any further from the truth. According to a 2013 study done in the US, the elderly enjoy far more sexy time than any of us would have ever imagined. For example, more than 50 percent of interviewees belonging to the 57–75 age bracket reported giving or receiving oral sex, while one-third of those in the 75–85 range reported indulging in the act.

As significant as the study was for breaking stereotypes, it also opened a can of worms: elderly STDs. According to the CDC, the number of geriatrics acquiring STDs has risen since 2007, mainly because of lack of education in using safety measures. Public health expert Emmanuel Ezekiel encourages health professionals to assist the elderly with sex education since sex comes naturally for people living in close proximity (in retirement homes, for example).

5Their Driving Has Improved Greatly

06
Good news to all users of the road: A 2012 study by the US Insurance Institute for Highway Safety (IIHS) found that accidents and crashes involving older drivers have significantly decreased in the last decade. Those who do get in accidents are now far more likely to survive with fewer injuries.

Since 1997, older driver fatalities have dropped by 42 percent, supported with a similar decrease in non-fatal incidents. For the Institute, this was a surprising find, since they expected that the ever-increasing elderly population would create more accidents on the road.

This positive trend could be attributed to modern cars being generally safer than previous models. Another critical factor is the improving physical and mental health of the elderly, which have helped to curb the number of accidents.

4They Could Be The Key To World Peace

07
The Roman Empire had a long period of peace called the Pax Romana, and some say that we’ll soon have our own version, thanks to our elderly.

Mark Haas from Harvard’s International Security Program notes that a rapidly aging population will force the United States to spend more of its budget on pensions and healthcare for the elderly instead of on tanks and aircraft. The foreseeable future will still see the US as the dominant economic and military power because rival countries including Russia and China will be hit even harder by the aging trend.

Supporters of the US’s current foreign policy say that the forced “Pax Geriatrica” will have its downsides. The US will be less able to police the world and intervene in localized conflicts. Decreased military and security spending could also leave the US more vulnerable to renegade terrorist attacks.

3Our Genes Command Us To Respect Them

08
We don’t just respect our elders out of good manners and maturity. We may be programmed to.

In 2010, France’s University of Rennes closely observed communication habits among a group of Campbell’s monkeys. The team noted that that older monkeys who called out tended to be answered more often, even though they communicated far less often than the younger ones. This indicated that the older monkeys—because of their greater experience in survival and higher rank in the social hierarchy—were far more influential in the group, leading younger monkeys to pay more attention to them.

Some may interpret the findings as a sociological phenomenon rather than a biological one, and some may think the results only extend to the study subjects. But the researchers conclude that respect for elders is as an evolutionary trait, which may be found generally in all primates, including humans.

2Their Brains Work Slower (Only Because They’re Full Of Wisdom)

09
While we young whippersnappers crack jokes at how excruciatingly slowly old people think and speak, they only do that because their brains have stored so much information. Combined with the fact that their brains need less dopamine than before, old people are also more thoughtful and far less likely to act on impulse than their younger peers. The elderly can still process new information, albeit at a slower pace for the same reason that they speak slowly.

These unique characteristics of an aging brain make up what researchers believe to be the biological root of wisdom. As University of Dallas Center for Vital Longevity’s Denise Park summarizes, “There’s a reason why we don’t have 20-year-olds running the world.”

1Older Workers Outperform Younger Peers

10
To learn how often cognitive performance fluctuates among workers, Berlin’s Max Planck Institute for Human Development divided participants into two groups based on their age range (20–31 and 65–80). All participants performed a series of cognitive tasks repeatedly for 100 days.

The older group’s cognitive performance varied much less than those in the younger group. In other words, they did their work more consistently. The researchers attributed the old workers’ steady performance to their being more emotionally stable as well as being more experienced to handle the various tasks.

Marc V. is always open for a conversation, so do drop him a line sometime.

]]>
https://listorati.com/10-unexpected-scientific-reasons-why-old-people-are-awesome/feed/ 0 16093
Top 10 Scientific Breakthroughs Of The Month (March 2019) https://listorati.com/top-10-scientific-breakthroughs-of-the-month-march-2019/ https://listorati.com/top-10-scientific-breakthroughs-of-the-month-march-2019/#respond Mon, 11 Nov 2024 00:25:39 +0000 https://listorati.com/top-10-scientific-breakthroughs-of-the-month-march-2019/

All things considered, 2019 is shaping up to be an enthralling year for science and technology. Here, we review 10 of the best scientific breakthroughs that made waves or may have flown under the radar over the past month.

Papers have been published on everything from a ketamine-related antidepressant nasal spray to a potential new method for treating Alzheimer’s. A stellar new species of frog rubs shoulders with a male contraceptive pill. Fascinating stuff.

10 Hangover-Free Alcohol

Researchers have produced a synthetic drink that replicates the feeling of alcohol without having to suffer a hangover the next morning.

The drink, named Alcarelle, contains a synthetic molecule known as alcosynth which can target the enjoyable areas of the brain while carefully avoiding the unpleasant areas. Alcosynth, much like regular alcohol, induces tipsiness by stimulating the brain’s GABA receptors. Unlike regular alcohol, it bypasses the receptors responsible for adverse, nauseating side effects.

Professor David Nutt, who created alcosynth with David Orren, lost his job working for the British government after he controversially claimed that alcohol is more dangerous than Ecstasy and LSD. In spite of this, he has remained dedicated to improving the safety of the drinks industry.

At the moment, Alcarelle is not available outside of the lab. The drink still has to be safety tested and regulated before it is deemed fit for consumption. However, Nutt hopes it will be on the market in as little as five years.[1]

9 Starry Dwarf Frog Discovered

A group of researchers has unearthed an entirely new species of frog while out in the mountains of India. The newly discovered amphibian is around 2–3 centimeters (0.8–1.2 in) in length with orange-and-brown skin which is speckled with tiny starlike spots. Scientists have decided to call this species Astrobatrachus kurichiyana, which translates as “starry dwarf frog.” The name was given due to its distinctive bright markings.

The research team, which hails from the US and India, believes that the starry dwarf frog is the last surviving member of an ancient lineage. Their most recent common ancestor is said to have lived around 57 million to 76 million years ago.

The team first came across the speckled frogs hiding under leaf litter while they were surveying wildlife in the Western Ghats mountain range back in 2010. Subsequent assessment has confirmed that Astrobatrachus kurichiyana is a new species of frog descended from a completely new subfamily of Indian and Sri Lankan amphibian.[2]

8 Subconscious Magnetic Sense

Are our brains able to tune in to the Earth’s magnetic field? According to Joseph Kirschvink, a geobiology professor at the California Institute of Technology, the evidence suggests that they do.

For their studies, Kirschvink and his team sat individual participants inside a six-sided wire cage. When a current is run through the wire coils, they produce a magnetic field similar to Earth’s. (The exact strength and direction depends on the current.) The researchers would then manipulate the cage’s magnetic field while an electroencephalogram measures the participant’s brain activity.[3]

Kirschvink found that the participants responded to the experiment by subconsciously “freaking out,” suggesting that our brains can sense changes in the magnetic field on some level. Similar magnetic senses—or, to use the technical term, magnetoreception—have been observed in cattle, turtles, and pigeons.

7 Electronics Made From Skin

One day, we may be building electronic devices from our own skin. Melanin, the pigment responsible for coloring our skin and hair, could be one of the building blocks of the bionic implants and technology of tomorrow.

Using a newly discovered technique, scientists can drastically improve the pigment’s ability to conduct electricity. In fact, Italian nanoscientist Paolo Tassini and his colleagues have managed to increase the conductivity of melanin a billion times over.

Typically, eumelanin, the most common form of melanin, is composed of millions of sheets piled chaotically on top of each other. The group of researchers has discovered a method for heating up the material in a vacuum to radically improve its conductivity. During the process, the sheets are brought out of disarray and arrange themselves in a parallel configuration.

It is thought that eumelanin may take the place of metals in bioelectronic devices like brain implants in the future. The pigment is naturally produced in our bodies, and for that reason, our immune system is more likely to accept it than a substance like copper.[4]

6 Worm Regeneration

As any mildly sadistic child will tell you, an earthworm has the amazing ability to grow back its body after being cut in half. At Harvard University, a group of researchers is exploring the origin of these incredible powers of regrowth while making a number of discoveries about the genome.

Led by Professor Mansi Srivastava, the team has identified the master control gene that is responsible for regeneration in three-banded panther worms. This master control gene, known as early growth response (EGR), masterminds the regeneration process by effectively switching sections of DNA on and off. This is only possible due to the dynamic nature of DNA, an area of biology that scientists are still trying to unlock.

In her research paper, Srivastava also explores why other species that use the EGR control gene, including humans, are unable to regenerate. It is hoped that future research can further our understanding of DNA—the blueprint for all of human life—as well as potentially enhance our abilities for regrowth and repair.[5]

5 Alzheimer’s Treated In Mice

Alzheimer’s disease is a devastating chronic condition that currently has no known cure. However, neuroscientists at MIT’s Picower Institute have made a potentially great stride forward in developing a treatment. The group has discovered that exposing mice to flickering lights and rapid clicking noises seems to keep Alzheimer’s at bay.

The strobe lights and high-speed clicking also appear to improve the memory skills of mice with symptoms of Alzheimer’s disease. These external stimuli induce brain waves that positively alter the composition of proteins in the brain. According to the research findings, mice that listened to the clicks for an hour a day performed faster in maze challenges and had considerably better object recognition skills.

There is still a large amount of research that needs to be carried out. Exactly how these brain waves enhance the cerebral capacity remains a mystery. Also, scientists have yet to determine whether similar treatments will translate from mice to human patients. If so, this could be the first step in a revolutionary new technique for addressing neurodegenerative diseases.[6]

4 Male Contraceptive Pill

It looks as if we are one step closer to getting a male contraceptive pill. A recent trial found that the drug brought down the levels of hormones that lead the testes to produce sperm. Scientists will now need to determine whether the sperm count itself has fallen by a sufficient amount.

During the trial, which was led by researchers at the University of Washington in Seattle, 40 healthy volunteers took a capsule each day with food. Three-quarters received a dose of the contraceptive drug 11-beta-MNTDC, and the remaining 10 just consumed placebos. Scientists discovered considerably lower levels of certain hormones among the men that took the drug, a decent indication that fewer sperm are being produced.

Although no significant side effects were reported by any of the volunteers, a few experienced headaches, lessened libido, and mild erectile dysfunction.

While women can choose from a broad array of different contraceptives, men are limited to either condoms or vasectomies. A “male pill” would open up the range of options available to men as well as alleviate women of some of the responsibility for not getting pregnant.[7]

3 Growing A Tiny Brain

The human brain is a thing of exquisite beauty. It is also phenomenally complex. Neurons fire off messages at breakneck speed across an intricate web of pathways. Every one of our thoughts and actions—everything from complex emotions to jerk reflexes—is controlled by that great cerebral nexus. Creating a replica human brain would be a prodigious challenge. We aren’t even entirely sure how it works in the first place.

In a staggering feat of science, researchers at Cambridge University have managed to grow a miniature, simplified human brain the size of a lentil. In some senses, the tiny bead of gray matter resembles the brain of a human fetus after three to four months of pregnancy. In terms of size, it sits somewhere between a cockroach and a zebra fish.

In recent years, scientists have produced a number of faux human brains, each more advanced than the last. This latest development goes further still, introducing a primitive kind of central nervous system.

Biologist Madeline Lancaster and her colleagues attached a spinal cord and muscle tissue to the droplet brain. The organoid automatically reached out and connected to the spinal cord, firing off electrical impulses that caused the muscles to twitch.[8]

By studying systems like this, scientists hope to further their understanding of conditions such as motor neurone disease, epilepsy, and schizophrenia.

2 Antidepressant Ketamine

In 1996, California indie band Eels achieved underground stardom with their debut single about taking novocaine for the soul. It now appears they might have been better off trying ketamine instead.

Experts are celebrating a potential watershed moment in mental health treatment after a ketamine-related antidepressant was given the green light earlier in the month. Esketamine, which will be branded as the nasal spray Spravato, has been approved by the US Food and Drug Administration (FDA) for treatment when traditional psychiatric drugs are not appropriate.

Although there is a vast array of different brands and styles, all currently available antidepressants work in effectively the same way. Typically, patients are required to wait weeks before they feel the results of their treatment, whereas esketamine is said to be rapid-acting. The effects kick in within a matter of hours or days.

Despite FDA approval of the drug, some experts remain skeptical. They are concerned by the long history of people abusing ketamine as a recreational hallucinogenic. However, this is not the first time that the drug has been used for medical purposes. For decades, surgeons have relied on ketamine as an anesthetic. In the early 2000s, the drug was introduced as an intravenous treatment for depression.

This marks the first time that esketamine has been approved to treat depression. As such, it is still in its infancy. There are a number of setbacks that need ironing out before the drug can be rolled out on a mass scale.

Due to the potential for abuse, it can only be administered by trained professionals in approved clinics. The price is hardly cheap, either: The initial month of treatment will cost somewhere in the region of $4,720 to $6,785. Nonetheless, psychiatrists remain optimistic that the FDA’s decision could usher in a new class of rapid-acting antidepressants.[9]

1 Patient Cured Of HIV

A patient in London has made history after becoming the second person to be cured of HIV. This anonymous patient became free of the virus after receiving a bone marrow transplant.

The donor of the transplanted stem cells has an unusual genetic mutation which makes them resistant to HIV. In the 18 months since the London patient stopped taking his antiretroviral medication, there have been no indicators that the HIV has returned.

Scientists will never be able to consider bone marrow transplant as a large-scale cure for HIV. The procedure comes with a number of serious risks. However, the success of the London patient and of Timothy Brown, the first person to be cured back in the 2000s, serves as confirmation that recovery is possible.

Anton Pozniak, the president of the International Aids Society, announced, “These new findings reaffirm our belief that there exists a proof of concept that HIV is curable.”[10]

The remarkable treatment, carried out by a team of experts from University College London, suggests that the cure for HIV may lie somewhere within gene editing. In particular, the CCR5 gene located on the surface of white blood cells causes immunity to HIV.

That said, gene editing is a controversial practice. Chinese experimentalist He Jiankui raised the ire of scientists worldwide after revealing that he artificially modified the DNA of human embryos in an attempt to create HIV-resistant babies. He has been branded unethical and unbelievably reckless, while others believe that his actions mark the beginning of a groundbreaking new area of biological research.

The scientific community must now decide where to draw the moral boundaries on topics as contentious as gene editing and human experimentation.

]]>
https://listorati.com/top-10-scientific-breakthroughs-of-the-month-march-2019/feed/ 0 16064
Top 10 Scientific Ways To Hack Social Situations https://listorati.com/top-10-scientific-ways-to-hack-social-situations/ https://listorati.com/top-10-scientific-ways-to-hack-social-situations/#respond Thu, 10 Oct 2024 19:31:10 +0000 https://listorati.com/top-10-scientific-ways-to-hack-social-situations/

Even if we choose to spend most of our time staring at a screen, humans are inherently social creatures. Social interaction still forms an important part of our day-to-day lives, whether it’s with colleagues at work, family at home or strangers on the Internet.

10 Surprising Ways To Hack Your Body

While some people seem to be naturally good at understanding social cues and carrying a perfect conversation, for the more introverted of us out there, it may not be as easy. Thankfully – and possibly due to scientists generally being introverts as well – science has come up with quite a few hacks you can use the next time you find yourself stuck in a social situation.

10 Feet Don’t Lie


Most people think of the eyes to be the best indicator of what someone is feeling, and they’re not entirely wrong. Eyes are capable of expressing a ridiculously wide range of emotions, though it’s also quite easy for most people to fake them. If you want to know what someone’s really feeling in a casual conversation at a party—according to science, at least—look at their feet.

While we’re perfectly capable of faking emotions with most other parts of the body, the feet aren’t easy to fool at all. You can tell if someone is stressed, humiliated, humbled, shy, lethargic, horny, angry or nervous just by looking at their legs or feet, as we have no control over it. For example, someone uncrossing his legs or turning his feet to point away from you is likely feeling a sense of discomfort, as his brain has already started making subconscious preparations to leave.[1]

9 Take A Cup Of Hot Coffee To Your Next Interview


The Internet is full of advice on what to do to prepare for an interview. Depending on the source, it may be anything from color-coordinating your clothes to trying to sleep with someone related to the interviewer. None of it works, though, as interviewers are usually looking for quick decision-making abilities and confidence, and rarely preparedness.

The best way you can ace an interview is by knowing what you’re talking about, but also warming your hands up before the handshake. If that sounds random, it isn’t. Studies have found that warmth can make someone kinder and more generous towards you. While they don’t know exactly why it happens, it may be a vestige from our early days. Shared warmth would have – at some point – helped us establish closer relationships with other people, which would have, in turn, helped keep us all alive.[2]

8 Stop Feeling Anything With Botox


While emotions are generally considered to be a good thing, they can also prove to be a detriment in many social situations. There are many times when something offensive or otherwise out-of-place ends up disproportionately affecting us. Emotions definitely work against us in those cases; if only there was a way to shut them off to avoid these situations.

As it turns out, there is; just get a Botox treatment. Botox has been long known to inhibit your ability to physically express emotions, but if some recent research is anything to go by, it may actually affect our ability to feel those emotions, too. While they don’t know how it can be possible – as emotions are entirely in the brain and shouldn’t be affected by cosmetic treatments – it’s similar to how you can fool your body into feeling happy by forcing a smile.[3]

7 In An Argument, Keep It Simple


Whenever we’re in the middle of an argument, we tend to dig up complex, elaborate facts to counter the opposing points. Unfortunately, that doesn’t quite work, as the main aim of most human arguments isn’t sharing knowledge or coming to an amiable conclusion, but winning. Keeping that in mind, the next time you’re stuck in a fairly simple argument with someone, try simplifying your language instead of making it tougher.

Studies suggest that speaking in easily-enunciable words and simple-to-understand sentences has a calming effect on the listener, and could even be used to make them more receptive to what you’re saying. It has been proven to work in areas other than social situations, too, like politics. Donald Trump’s rise, as an example, could be attributed – at least in part – to his simple, straightforward manner of speaking which innately appeals to people.[4]

6 Use Your Non-Dominant Hand To Control Anger


Contrary to what most people think, emotions like rage aren’t limited to people with a short temper. In most cases, uncontrollable anger is a symptom of other underlying issues, but also a fairly regular part of daily life if kept under normal levels. For anyone who isn’t able to do so, you may want to actively try using your non-dominant hand for daily tasks.

As a study done by a professor at the University of Wales suggests, just the simple act of switching hands while doing basic tasks like cleaning the house or using your laptop could massively reduce your anger, as well as train the mind to control itself better in the future. Obviously, don’t try this with situations like trying to play a music instrument or writing, where switching would probably make you even angrier than before.[5]

5 The Benjamin Franklin Effect


Ever been in a drawn-out, heated argument that has gone on long enough for you to desperately want to escape it to cut your losses in temper? At that point, there aren’t many things you can do. You can either completely blow up, shut them up and walk away, or be more polite and text a friend to help you out of the situation. As it turns out, there’s something else you can try, too; do them a favor to force yourself to like them.

It’s known as the Benjamin Franklin effect, as he was the first one to theorize that if someone is kind to you once, he’s much more likely to be kind to you in the future. That sounds baffling, as our actions should be caused by our feelings and not the other way around. It was only when it was scientifically proven in 1969 that we realized that it’s a real phenomenon.[6]

4 Social Proof


If you ever walk past two adjacent food stalls selling the same item, chances are that one of them would always be much more crowded than the others. We see this in action in the case of cafes or restaurants, too. People tend to go to places they see other people going to, as it indicates that it’s a better place to go to. Mind you, it doesn’t necessarily mean that it’s better, only that people trust others when it comes to the value of things in our society.

This is known as a marketing strategy called ‘social proof’, and could be successfully used in social situations, too. You can make your arguments much more convincing if you make them sound like someone else came up with them, even if they didn’t.[7]

3 The Last Impression


As a society, we give a lot of importance to first impressions. Whether it’s a first date or an interview, we make sure to put our best foot forward when we walk into the room. It makes sense, too, as conventional wisdom suggests that first impressions can make or break a meeting.

As growing research is finding out, though, first impressions are hardly impactful enough to make a difference, or even in our control. If you really want someone to remember a first meeting with you, you need to focus on your last impression instead. More clearly, people tend to remember what you leave them with over what you did when you first came into the room, especially when it comes to permanent, long-term impressions.[8]

2 Chew Gum To Calm Your Nerves


Nerves maybe annoying at times, though they’re a pretty useful mechanism of the body to help us deal with hectic situations. Being nervous before an exam ensures that you study for it well. When it comes to social interactions, though, they can work against us, too. For many people, being nervous can be a debilitating place to be in, and could actively hamper their day-to-day productivity.

While there aren’t any medical cures for that (yet) chewing gum can help you temporarily fix it. Researchers have found that the continuous act of chewing can actually considerably lower anxiety and improve your mood, as well as help fight feelings of depression. It’s not just useful before interviews or other social meeting, either, as it could be used in many other non-social situations, too.[9]

1 Asking For Help Actually Makes You Appear Smarter


Most people agree with the ‘fake it till you make it’ approach; appear like you know what you’re talking about and people would think that you really do. It’s a central theme of many rap songs and inspirational movies, and seems to be fairly straightforward and accurate piece of advice.

As a researcher at the Harvard Business School found out, however, asking for help may actually make you appear smarter to others for multiple, unrelated reasons. For one, admitting that you don’t know something comes across as a sign of wisdom, as gathering more information to fill gaps in your knowledge is an inherently smart thing to do. More importantly, asking for help makes the other person feel important and intelligent, in turn improving his own opinion of you.[10]

Himanshu Sharma

Himanshu has written for sites like Cracked, Screen Rant, The Gamer and Forbes. He could be found shouting obscenities at strangers on Twitter, or trying his hand at amateur art on Instagram.


Read More:


Twitter Facebook Instagram Email

]]>
https://listorati.com/top-10-scientific-ways-to-hack-social-situations/feed/ 0 15431
10 Brilliant Feats Of Scientific Technology https://listorati.com/10-brilliant-feats-of-scientific-technology/ https://listorati.com/10-brilliant-feats-of-scientific-technology/#respond Tue, 08 Oct 2024 22:18:34 +0000 https://listorati.com/10-brilliant-feats-of-scientific-technology/

Sabine Hossenfelder is not a household name, but a recent article of hers has stirred up a host of debate among some scientific specialists. In her piece, published by the magazine New Scientist, the journalist and theoretical physicist argues against investing an enormous sum of money in a new particle collider. Research organization CERN has announced plans to build a €21 billion supercollider, a proposal that Hossenfelder says does not justify its hefty price tag.[1]

Her article has split opinion among theoretical and particle physicists. Many agree with Hossenfelder’s well-reasoned conclusion. Others argue that investment is needed for the evolution of cutting-edge technology; without fresh areas of work, the research will simply dry up.

Whether or not the high-cost supercollider will be built remains to be seen. However, in the midst of this forward-thinking debate, we must not lose perspective on the here and now. The Large Hadron Collider, CERN’s main boast, opened only a decade ago. In that time, we have witnessed the discovery of gravitational waves, the Higgs boson, and various quantum mechanical phenomena.

These bold leaps forward have only been possible due to a wealth of state-of-the-art technology. The following are all incredible feats of engineering that have helped to revolutionize our understanding of the world around us.

10 Dark Energy Camera

What is dark energy? The brief answer is that nobody is really sure. In a sense, dark energy is the antithesis of gravity, exerting a negative, repulsive pressure that is believed to accelerate the expansion of the universe. The elusive energy form is said to account for around two thirds of the total mass-energy of the universe, the rest being mostly dark matter.

That said, the mystery of dark energy may not be a mystery for much longer. A group of researchers at the Cerro Tololo Inter-American Observatory is exploring dark energy in an attempt to understand the universe at a fundamental level. Situated high in the Chilean Andes, their Dark Energy Camera (DECam) captures high-definition images of the cosmos. It is one of the most sophisticated digital cameras on the planet.

It took scientists from six different countries over a decade of designing and testing to come up with DECam. The project has mapped out roughly an eighth of the sky in exceptional clarity, while also cataloguing 300 million galaxies. Experts are currently in the process of analyzing the images.[2]

9 Einstein Tower

As extravagant to look at as it is scientifically vital, the Einstein Tower in Potsdam, Germany, has spent nearly a century studying the Sun. The observatory was opened in the 1920s with the aim of validating Einstein’s then-recently published theory of relativity. Housed in the tower is an unconventional style of telescope, immovable and bolt upright, that measures spectral shifts in solar rays.

Even more bizarre than the theory it was commissioned to verify is the building itself. The Einstein Tower is a renowned example of expressionist architecture that brought its creator, Erich Mendelsohn, to fame. Observatories are generally fronted by bland, purely functional exteriors, but Mendelsohn’s vision was far more avant-garde.

The outcome of this outlandish approach to architecture is a curvaceous, science fiction-esque structure that juts up out of the German landscape. The building’s namesake, Albert Einstein, is said to have disapproved of the futuristic design.[3]

8 Stonehenge


By modern standards, it may be a prehistoric artifact, but when the rocks were first erected on Salisbury Plain some 5,000 years ago, Stonehenge was state-of-the-art technology. Historians have found strong evidence to suggest that the stone circle was a primitive sort of observatory used to monitor the sky.

In fact, some claim that the builders of Stonehenge must have used Pythagoras’s theorem, two millennia before the Greek philosopher was born. The original henge is said to have been surrounded by 56 wooden posts. Ancient astronomers would have used these to map out solar and lunar eclipse cycles.[4]

7 Pierre Auger Observatory


Cosmology is brimming with mysteries. How did our universe come into being? What is it made of? How do you explain its unusual expansion?

One such mystery is cosmic rays. Our planet is being bombarded by a continuous stream of high-energy particles, hurtling toward Earth at close to light speed. This barrage of subatomic particles is a phenomenon known as cosmic rays. The lower-energy rays are known to be born out of stars dying in our Milky Way galaxy. Far less is known about the higher-energy rays. Thought to originate from far-off galaxies, their exact source has eluded scientists for decades.

Cosmic rays are also extremely rare. On average, a square kilometer (0.39 mi2) will be hit by just one high-energy particle per century. To combat this issue, researchers have constructed an enormous detector that spans for miles across Argentina. The Pierre Auger Observatory covers a detection area of around 3,000 square kilometers (1,200 mi2)—roughly 30 times the size of Paris. Completed in 2008, the observatory picks up the cosmic rays after they have struck the atmosphere and showered down to Earth in a cascade of various secondary particles.[5]

6 Lovell Telescope


In a rural village in the heart of England, a renowned radio telescope has spent the last 60 years examining the cosmos. Found at Jodrell Bank, an observatory run by the University of Manchester, the Lovell Telescope is one of the most powerful radio telescopes ever built.

Its standout feature is the fully steerable white bowl, 76 meters (250 ft) in diameter, that adorns two motor-powered towers. This enormous bowl acts like a giant satellite dish, collecting and focusing radio waves from sources in the sky to be transformed into electrical signals.

Still the third largest of its kind over half a century since it was first assembled, Lovell has played a pivotal role in furthering our understanding of astronomy. The theories now being explored by Lovell were virtually unimaginable when it was first opened.[6]

5 Super-Kamiokande

Neutrinos have been at the heart of a number of fascinating scientific discoveries in recent years. The minuscule subatomic particles are thought to be among the most abundant in the universe and also one of the most difficult to detect. In 2015, Takaaki Kajita and Arthur B. McDonald were awarded the Nobel Prize for Physics after demonstrating that neutrinos change their intrinsic properties as they travel.

This fluctuation requires the particles to have some mass, contrary to the long-held belief that neutrinos are massless. Particle physicists now have to reassess their understanding of the nature of matter. It will likely lead to an expansion of numerous scientific theories.[7]

Kajita’s groundbreaking discovery was only possible due to Super-Kamiokande (model pictured above), an enormous underground detector tank filled with 50,000 tons of water. As neutrinos sprint through the tank, the vast majority of them leave no trace, but a few emit dazzling bursts of Cherenkov light (the optical equivalent of a sonic boom). By analyzing the bursts, researchers are able to examine the properties of the neutrinos themselves.

4 Hubble Telescope

Orbiting 547 kilometers (340 mi) above our heads, the Hubble Space Telescope has been described by NASA as the most important step forward in astronomy since Galileo introduced his telescope in 1610. In April 1990, when Hubble was first launched and deployed; having a permanent telescope outside of the Earth’s atmosphere was seen as revolutionary. Almost three decades later, the technology remains right at the cutting edge of modern science.

Unlike traditional ground-based telescopes, Hubble surveys the depths of space unimpeded by Earth’s dense, distorting atmosphere. The telescope’s sophisticated cameras can view astronomical occurrences with better clarity and consistency than any observatory on the planet.

The steady stream of observations being fed back from Hubble has entirely altered our understanding of the universe around us. On average, around 150 scientific papers per day will cite research that in some way incorporates Hubble data. The telescope has enabled astronomers to explore all manner of topics in great depth, from supermassive black holes to dark energy. It’s a mammoth achievement, especially for a satellite that is only the size of a large bus.[8]

3 Large Hadron Collider


CERN’s Large Hadron Collider (LHC) is, for the moment, at least, the most powerful particle accelerator ever built—although, as addressed at the start of the article, developers are currently debating whether to build another almost four times larger.

Inside the 27-kilometer (17 mi) magnetic ring, two beams of particles are thrust together at close to light speed. Researchers in Geneva have been smashing subatomic particles into one another since 2009. In 2012, after the LHC had been in operation for a only a few years, they made global headlines by confirming the existence of the Higgs boson.

It was initially hoped that the LHC might also be able to shed light on string theory and dark matter. As time passes on, with no evidence found, this is looking increasingly unlikely.

In order for the ring to maintain its magnetism, coils of superconducting cable need to be chilled with liquid nitrogen, which keeps them at a frosty minus 271.3 degrees Celsius (–456.3 °F). At these extremely low temperatures, the cable has an incredible ability to conduct electricity perfectly without losing any energy.[9]

2 LIGO

Gravitational waves are distortions in the fabric of space and time that radiate from high-energy interstellar bodies. They emanate from accelerating objects and spread through the cosmos like ripples across a pond. The largest waves stem from massive, turbulent events like a supernova explosion or two black holes colliding. There is even believed to be some gravitational radiation still lingering from the birth of the universe.

Albert Einstein first imagined these celestial ripples in 1916 as part of his general theory of relativity. However, their existence was not proven until 1974. For the first gravitational wave to actually be detected, researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO) in Louisiana had to construct a style of high-precision instrument known as an interferometer. Interferometers are able to take minuscule measurements by comparing two near-identical beams of light. They are often used to determine small changes in position.

While interferometer technology has existed since the late 19th century, LIGO’s are the most sensitive ever built. The twin detectors are made from two 4-kilometer (2.5 mi) steel vacuum tubes and measure fluctuations thousands of times smaller than a proton.[10]

The first gravitational waves to be sensed by LIGO came from two black holes crashing into each other almost 1.3 billion years ago. This momentous achievement earned three of LIGO’s researchers the 2017 Nobel Prize in Physics, along with mass acclaim from the media and their peers.

1 International Space Station

Around the same size as a football field, the International Space Station (ISS) is the largest artificial structure that we have ever put into space. Since November 2000, the station has been continuously inhabited, hosting over 200 individuals from 18 different countries. In a day, the distance traveled by the ISS is the equivalent of flying to the Moon and back.

Onboard the ISS, research projects are conducted into a wide array of various topics. On one mission, the crew was tasked with burning small, spherical droplets of fuel as part of a study into flames in microgravity. Another grew large crystals of protein in the name of medical research.

What’s more, the ISS is mounted with an exceptionally sensitive particle detector known as the Alpha Magnetic Spectrometer (AMS). Unlike the Pierre Auger Observatory, this instrument is able to measure cosmic rays before they fragment in the atmosphere. Data from the AMS may help enlighten cosmologists as to the source of cosmic radiation, while also supporting some theories on the composition of dark matter.[11]

Writer from Britain.

]]>
https://listorati.com/10-brilliant-feats-of-scientific-technology/feed/ 0 15411
10 Recent Scientific Breakthroughs And Discoveries https://listorati.com/10-recent-scientific-breakthroughs-and-discoveries/ https://listorati.com/10-recent-scientific-breakthroughs-and-discoveries/#respond Mon, 23 Sep 2024 20:46:01 +0000 https://listorati.com/10-recent-scientific-breakthroughs-and-discoveries/

Contemporary science is a hotbed of cutting-edge research. Astronomers across the globe have marveled at the first photographic evidence of a black hole. An unconventional in vitro fertilization (IVF) technique has come under fire from medical professionals.

Elsewhere, scientists from Japan have fired explosives at an asteroid, and in Germany, they have discovered a prehistoric molecule from the early years of universe. Setting aside the negative headlines—like the Israeli spacecraft that crash-landed on the Moon or the Indian missile test that might have endangered the International Space Station—here are ten of the most fascinating breakthroughs to have made recent headlines.

10 Astronomers Have Bombed An Asteroid

A group of Japanese astronomers has decided to bomb the asteroid Ryugu, hoping it can answer some fundamental questions about the origins of life on Earth. A cone-shaped instrument known as a “small carry-on impact” was sent hurtling into the asteroid, where it blasted out a crater using a baseball-sized wad of copper explosives.

The device was fired from the Hayabusa 2 spacecraft—a pioneering exploration mission operated by the Japan Aerospace Exploration Agency. The spacecraft will head back to Ryugu at a later date to collect samples from beneath the asteroid’s surface that been uncovered in the blast.

Researchers predict there is a wealth of organic material and water from the birth of the solar system preserved underground in the asteroid. By analyzing the samples from Hayabusa 2, they hope to gain a clearer understanding of the early stages of the solar system and of life on Earth.[1]

9 Can We Taste Smells?


It seems our tongues might be more capable than we originally realized. A research team from Philadelphia has suggested that receptor cells in the tongue are able to detect odors and smells. Their work is prompting experts to reassess whether taste and smell are combined by the brain alone or if there is some level of association between the two signals.

The group, whose findings were published in the journal Chemical Senses, began by experimenting on receptors in genetically modified mice. Following this, they moved onto cells in humans, which displayed similar properties to the mice and were found to respond to aromatic compounds.

For now, it is far too early to draw any concrete conclusion, but with further development, these ideas may be applied to persuade people to eat a healthier diet. Dr. Mehmet Hakan Ozdener, a specialist at the Monell Chemical Senses Center, has suggested that mildly altering the scent of some foods could reduce sugar intake.[2]

8 Molecule Detected From The ‘Dawn Of Chemistry’

After decades of scouring the cosmos, experts have successfully detected the compound helium hydride, thought to be the first molecule formed in the history of the universe. Due to the obstructive effects of the Earth’s atmosphere, researchers decided to take to the skies to make their landmark discovery. The Stratospheric Observatory for Infrared Astronomy, an airborne observatory built into a modified Boeing 747, was able to pick up infrared signals emanating from the prehistoric molecule.

In a period dubbed the “dawn of chemistry,” around 100,000 years after the Big Bang, the universe had cooled to a low enough temperature that particles began to interact and coalesce. In this era, when light atoms and molecules first came into being, it was helium hydride that paved the way for far more intricate interstellar structures to come. By continuing to investigate the elusive molecule, researchers are able to explore the expansion of the universe in its nascent stages.[3]

7 New Species Of Primitive Human Discovered

Another strand has been added to the history of human evolution. Remnants of an extinct relative have been found in Callao Cave on the island of Luzon in the Philippines. The primitive species, known as Homo luzonensis, is said to have resembled modern humans in some respects but in others was closer to our ancient ape-like ancestors. On top of that, they are thought to have been competent climbers, as indicated by the curved bones in their fingers and toes.

The discovery poses a number of questions about the long and complex history of our species. With only 13 teeth and bones on which to base their hypotheses, experts remain in the dark as to how Homo luzonensis came to be on the island in the first place. Furthermore, the species’ features suggest that our ancient ancestors made the journey out of Africa to Southeast Asia, an idea which contradicts current historical theories.[4]

6 Pig Brain Revived After Death

The zombie pigs are said to be among us. A team of neuroscientists from the Yale University School of Medicine have demonstrated that, in part, it is possible to revive a pig’s brain hours after death. Their pioneering new system, BrainEx, has restored a number of basic functions to over 30 dead brains, such as the ability to absorb sugars and oxygen. (The left picture above shows a dead brain, and the right shows a partially reactivated brain.)

The technology involved in BrainEx sends an oxygen-rich solution pulsing through the pig’s grey matter. This fluid partially revives the cells for a maximum of six hours, while also slowing down the process of deterioration after death. However, the brains are, by definition, still dead; there is no evidence of consciousness being reinstated.

This highly advanced research presents an ethical quandary over whether it is correct to experiment on semi-living beings. The National Institute of Health has been discussing the implications of BrainEx since 2016 via their Neuroethics Working Group and are wary of the possible consequences of using similar technology on humans.[5]

5 Scientists Create Transparent Organs

Organ transplants may soon become a thing of the past. For years, scientists have strove to create fully functioning artificial organs to address the significant dearth of donors. The dream is now one step closer, courtesy of Dr. Ali Erturk and his colleagues at the Ludwig Maximilians University in Munich.

The team has successfully developed a technique to fashion transparent human organs, with an aim to further understand their elaborate inner structures. Organic solvents are used to remove fats and pigments without disturbing any of the tissue underneath. The uncovered organs can be explored in intricate detail using a laser scanner, which allows scientists to build up a complete structural image of the body part.

Erturk is confident that, as technology improves, these scans can be used as blueprints to produce 3-D bioprinted replica organs. The team hopes to have constructed a 3-D printed kidney by 2025.[6]

4 Obesity-Resistant Genes Discovered


The link between genetics and body mass has been known for many years, but now scientists at Cambridge University have identified exactly which genes keep people slim. Around four million people in Britain, six percent of the population with European ancestry, have a specific DNA coding that prevents them from gaining large amounts of weight.

Previous studies discovered that the gene MC4R controls a protein known as melanocortin 4, a brain receptor associated with appetite. Participants in this experiment with a specific strand of MC4R displayed more restraint in their appetites, making them far less likely to suffer from obesity or type 2 diabetes. This deepened understanding of genetics opens up the possibility of a slimming medication to combat rising levels of obesity.[7]

3 Memory Loss Reversed


By stimulating the brain with electrical pulses, scientists are able to temporarily offset the debilitating effects of memory loss. With age, vital cognitive networks in the brain begin to lose their synchronicity. This leads to the deterioration of the working memory—the short-term processing system that plays a key role in tasks like facial recognition and arithmetic.

Now, neuroscientists at Boston University have found that noninvasive electrical stimulation appears to improve the connection between these networks. The researchers reported that a study group of 60- to 76-year-olds performed significantly better in a series of working memory tasks after around half an hour of pulse treatment. Those with the most pronounced memory issues showed the biggest improvements.

Further clinical trials are needed to determine whether this stimulation is a viable method for combating memory loss or dementia.[8]

2 Baby Born With DNA From Three People


In a breakthrough moment for in vitro fertilization, a baby has been born in Greece with DNA from three different people. The newborn boy was conceived using the mitochondrial donation technique, in which the intracellular structure of the mother’s egg is modified slightly using a second donor egg. During the technique, the mitochondria—tiny, floating structures that provide power to the cell—from the mother’s egg are replaced by that of a donor. While the vast majority of the baby’s genetic material has been passed down from his parents, an extremely small amount of his DNA—around 0.2 percent—originates from the donor.

Doctors claim this is the first time that mitochondrial donation has been applied to combat fertility issues. Spanish embryologist Nuno Costa-Borges has labeled the healthy birth a “revolution in assisted reproduction” and claims that it has the potential to help a multitude of would-be mothers in the future.

However, critics of the treatment are warning women to proceed with caution. Reproductive expert Tim Child has explained how little is known about the risks or benefits of the technique, dismissing Costa-Borges’s claims as unfounded in evidence.[9]

1 First image Of A Black Hole

For the past century, the only evidence astrophysicists have had for the existence of black holes has been scientific theories and indirect observations. The cosmic giants have a gravitational attraction so powerful that nothing can escape their immense pull, and their existence has been incredibly challenging to verify. And yet, in spite of the major difficulties, scientists have managed to generate an image of one.

The picture in question is of the fiery disk of accreted gas surrounding the black hole at the core of the Messier 87 galaxy. With a diameter of 38 billion kilometers (23.6 million mi), the active supermassive colossus lurks 55 million light-years from our planet. The black hole itself is impossible to literally “see,” but the dark area at the center of the ring corresponds to its shadow.

To capture the image, a task described by leading astrophysicist France Cordova as “Herculean,” scientists deployed the Event Horizon Telescope (EHT), a global network of high-precision radio telescopes.[10] This Herculean task required a Herculean amount of data, so much that it was impossible to transfer over the Internet. Instead, half a ton of hard drives had to be flown to a central location, where the readings were combined using state-of-the-art processing techniques.

The image appears to verify the first predictions of black holes made by Einstein’s general theory of relativity, which addresses the distortion of space and time caused by immense, massive objects. The EHT researchers now have their sights on Sagittarius A—the supermassive beast at the heart of the Milky Way.

]]>
https://listorati.com/10-recent-scientific-breakthroughs-and-discoveries/feed/ 0 15092
Top 10 Scientific Breakthroughs Of The Month (May 2019) https://listorati.com/top-10-scientific-breakthroughs-of-the-month-may-2019/ https://listorati.com/top-10-scientific-breakthroughs-of-the-month-may-2019/#respond Wed, 04 Sep 2024 18:44:53 +0000 https://listorati.com/top-10-scientific-breakthroughs-of-the-month-may-2019/

Almost halfway through the year, headlines have once again been swarming with an array of fascinating new studies. Scientists from across the planet have been working away to learn more about the bizarre, fascinating world in which we live.

This month, a mind-controlled hearing aid has been invented that decides how to act by monitoring its wearer’s brain activity. On the subject of brain activity, neuroscientists have found the region of the brain that is activated when a long-term fan looks at a Pokemon character. Elsewhere, a gold-digging fungus has been uncovered in Western Australia, and quantum physicists have been using laser techniques to recreate the Mona Lisa.

10 Fungus Discovered That Extracts Gold

Scientists searching near Perth, Western Australia, have been taken aback after coming across a fungus that draws in gold from its environment. The unique fungus—Fusarium oxysporum—collects particles of gold from its surroundings and attaches them to its spindly strands. It is believed that the fungus coats itself in gold to promote growth and spread quicker than other fungi in the area.

Australia has a thriving gold industry, the second largest in the world. However, resources are dwindling, and new reserves need to be found. Research scientist Dr. Ravi Anand hopes that the fungus could be used to locate large deposits buried underground. Similar techniques involving gum leaves and termite mounds are already in use.[1]

9 Suicidal Thoughts Could Be Detected By Brain Scans


A potentially huge step forward has been made in mental health treatment for post-traumatic stress disorder (PTSD) sufferers. Researchers from the Yale University School of Medicine believe they may have discovered a biomarker that highlights suicidal thoughts in the brain.

The group’s preliminary findings, published in the scientific journal PNAS, suggest that it is possible to recognize suicidal thoughts by focusing on a specific brain receptor: metabotropic glutamatergic receptor (mGluR5). People with PTSD already have elevated levels of mGluR5. The researchers found that, from a group of 29 people with PTSD, those suffering from suicidal thoughts had even higher levels of the receptor on the surface of their brain cells.

More research needs to be done before any conclusive links can be made between suicidal tendencies and mGluR5, but the findings offer a glimpse at a new, more effective form of PTSD drug therapy. Currently, there is no treatment available in the US that is specifically tailored to PTSD-related suicidal thoughts.[2]

8 The First Mind-Controlled Hearing Aid


Scientists at Columbia University in New York have created a mind-controlled hearing aid that, for the first time, allows users to hone in on specific voices. The device is said to vastly improve the experience of people with hearing loss in loud, crowded environments and busy social occasions.

Unlike conventional hearing aids, which amplify all sounds together, this one simulates an impressive psychological phenomenon known as the cocktail party effect. This remarkable feat of selective hearing allows the brain to focus in on one particular voice amid background chatter. Previously, hearing aids were unable to recreate the effect, which could make conversations in noisy areas particularly difficult for wearers.

After years of research, scientists have finally come up with a solution that incorporates artificial intelligence and state-of-the-art brain monitors. The advanced hearing aid uses an algorithm to pick apart the numerous voices and then tunes in to the wearer’s neural activity to determine which one to amplify.[3]

7 Why Our Brains Love Pokemon


Psychologists at Stanford believe they have uncovered the region of the brain that causes some people to love Pokemon.

Researchers found that the brains of adults who played the game often as children responded more firmly to images of the Japanese creatures compared to those who did not. The team invited 11 Pokemon fans and 11 novices to take part and monitored their neural activity using a functional MRI scanner while showing them images of characters. They identified the occipitotemporal sulcus, an area of the brain found right behind our ears, as the region that activated when the fans were presented with Pokemon characters.

Jesse Gomez, one of the main authors of the study, told reporters how the experiment was partly inspired by his own childhood love for the franchise.[4]

6 Mayonnaise Helps With The Study Of Nuclear Fusion


Mayonnaise may be able to teach us more about nuclear physics than we first thought. Arindam Banerjee, an expert in material dynamics from Lehigh University, believes that the condiment could provide the solution for improving fusion modeling techniques.

In order to effectively study nuclear physics, scientists sometimes rely on the technique of internal confinement fusion (ICF). In ICF, pea-sized pellets of gas are heated to millions of degrees Kelvin using the energy from highly intense lasers. However, this method is not efficient. Due to the intense burst from the laser, the pellets often explode before physicists get the chance to study them properly.

To better understand the dynamics between the pellet and the gas, scientists exposed a container of Hellman’s Real Mayonnaise to the same conditions as the metal pellets. Mayonnaise, Banerjee claims, was chosen because it exhibits many of the same properties as molten metal. This is one of the few rare uses of household condiments in cutting-edge research.[5]

5 Quantum Physicists Recreate The Mona Lisa

Classic art has finally entered the realm of quantum physics. While investigating the unknown origins of fluid flow, a team of researchers at the University of Queensland decided to render some famous pieces of art in quantum form.

The miniscule “paintings” are only 100 microns wide—around the same as a human hair—and include the Mona Lisa and Vincent van Gogh’s Starry Night. Researchers used a laser technique known as light stamping to project the classic images onto a gas of ultracold rubidium atoms.

When kept at a fraction of a degree above absolute zero, certain atoms like rubidium take on a number of abnormal properties. The particles start to coalesce into an exotic form of matter called a Bose-Einstein condensate (BEC). Quantum phenomena that are usually only noticeable using sophisticated microscopes can be seen on the macroscopic scale.

While they are a fantastic achievement, the tiny works of art were never originally meant to be created. “We never aimed to do this,” quantum expert Tyler Neely revealed in a statement. “We just happened to create some of the world’s smallest masterpieces.”[6]

4 Shark Vomit Throws Up Unexpected Result

Researchers have been taken aback after discovering traces of land-based birds in the stomachs of young sharks. A team of biologists from Mississippi State University analyzed the DNA found in the stomachs of baby tiger sharks and were perplexed to find that some belonged to doves and meadowlarks.

The project began in 2010, after one of the sharks gobbed up feathers from a land bird off the Mississippi-Alabama coast. Researchers pumped the stomachs of 105 tiger sharks between 2010 and 2018 to investigate the contents of their diets. Again, they were surprised to discover evidence of land-dwelling birds being consumed.

So how do the remains of a bird that lives on land wind up in the stomach of a shark? The researchers saw that the bird remains typically showed up at one time of year and concluded that the sharks were feasting on songbirds that had fallen into the ocean. They could have fallen due to fatigue or plummeted into the water during a storm.[7]

3 Mammals Are Getting Smaller


By the end of the century, animals will have shrunk by unprecedented amount, scientists say. A recent study in Nature Communications predicts that in 100 years’ time, the average body size for mammals will have reduced by 25 percent. To put this in perspective, over the last 130,000 years, mammals experienced a 14-percent reduction in body mass—around 0.001 percent per century.

On top of this, researchers found that larger, less adaptable species face a greater threat of extinction. Using the IUCN Red List of Threatened Species, the team listed the animals with the highest probability of becoming extinct.

As part of the project, the team examined more than 15,000 birds and animals, looking at five key characteristics: body mass, litter size, diet, habitat, and the time gap between generations. The Sumatran orangutan was found to have a mere one-percent chance of surviving to the end of the century, whereas the Amur tiger, which is also considered endangered, has a chance of two-in-three.[8]

2 A Record-Breaking High-Temperature Superconductor

Superconductors are one of the most fascinating scientific discoveries of the 20th century. These materials are able to conduct electricity with perfect efficiency. An electrical current can flow through one without losing any of its energy. In theory, superconductors have a huge range of cutting-edge applications. They should be the perfect material for building state-of-the-art supercomputers and high-speed rail systems.

However, there is a fundamental issue with superconductors: They will only operate at extremely low temperatures. Traditionally, these materials stop working once they become more than a few degrees warmer than absolute zero. Scientists have yet to find one that can retain these incredible properties at room temperature.

In new developments, researchers at the Max Planck Institute have set a potential temperature record after producing a material, lanthanum hydride, that acts as a superconductor at minus 23 degrees Celsius (–9°F). To create the compound, they subjected a soft, ductile metal called lanthanum to immense pressure by compressing it between two diamonds. According to the team, they used a device known as a diamond anvil cell to exert over 150 gigapascals of pressure—over 1.5 million times the pressure at sea level.[9]

1 The First Living Creature With Fully Synthetic DNA

For the first time in history, scientists have built an organism with entirely synthetic DNA.

Researchers from the Laboratory of Molecular Biology in Cambridge artificially recreated Escherichia coli—a bacterium typically found in the lower intestine. The synthesized microbes are not genetically identical to their real-life cousins; scientists made over 18,000 alterations to the E. coli genome, often removing superfluous DNA sequences. Following this, the team created new cells that contained the redesigned genetic structure. With four million genetic letters, this is by far the largest artificial genome in history.

The synthetic bacteria, known as Syn61, could be used for various medical applications. E. coli are a key component in the production of insulin, but the process is sometimes scuppered if the bugs become contaminated by viruses. Syn61’s designer DNA makes it highly resistant to virus invasion. What’s more, genetically programmed organisms could one day be used to produce proteins, drugs, and other materials.[10]

]]>
https://listorati.com/top-10-scientific-breakthroughs-of-the-month-may-2019/feed/ 0 14734
10 Scientific Explanations For Near-Death Experiences https://listorati.com/10-scientific-explanations-for-near-death-experiences/ https://listorati.com/10-scientific-explanations-for-near-death-experiences/#respond Sat, 10 Aug 2024 14:25:22 +0000 https://listorati.com/10-scientific-explanations-for-near-death-experiences/

There is very good reason for all of humanity to have a healthy curiosity relating to near-death experiences. Death is the one experience we are all guaranteed to ultimately share. The field of science has therefore made numerous attempts to explain the near-death phenomena that so many people have independently described.

10The Temporoparietal Junction May Be Responsible For Out-Of-Body Experiences

01

Among the more common elements of near-death experiences is the distinct feeling of an individual having left their worldly body. Those who have had an “out-of-body” experience often report floating above themselves while being able to see their body and the people surrounding them. There have even been a few reports in which those who have had an out-of-body experience can identify objects and events occurring during times in which they were considered clinically dead, but there have also been studies demonstrating that this all could be due to damage in the temporoparietal junction of the brain.

The temporoparietal junction is responsible for assembling the data collected by the body’s senses and organs to form the perception of an individual’s body. When this part of the brain is damaged, it is possible that this results in the “out-of-body” experience that so many people have reported.

Though the experience may appear to be incredibly vivid and real, scientific studies have been able to reproduce this phenomenon without bringing the subject close to death, simply by electrically stimulating the temporoparietal junction of the brain.

9Excess Carbon Dioxide May Create The Tunnel And White Light

02

Nearly every individual who has had a near-death experience discusses the existence of a bright, white light and a tunnel that seems to lead to the afterlife. The white light seems to take on an otherworldly quality and is often accompanied by an overwhelming sense of peacefulness and welcoming.

A 2010 study of patients who had heart attacks revealed that there may be a correlation between this type of near-death experience and the level of CO2 in the blood. Out of the 52 cardiac patients studied, 11 reported a near-death experience. The levels of CO2 in the blood of those 11 patients were significantly higher than the patients who did not report having a near-death experience.

The feeling among researchers is that the excess CO2 in the bloodstream can have a significant effect on vision, which leads to patients seeing the tunnel and the bright light.

8Lack Of Oxygen To The Brain Causes Hallucinations

03

Many near-death experiences include the presence of long-dead friends and relatives appearing and perhaps even guiding the individual as they pass from the world of the living to the afterlife. Memories from every part of life are recalled in rapid succession, and there is an overwhelming sense of comfort, yet it appears that scientific research has provided an explanation for this phenomenon as well.

While excess CO2 has an effect on vision during a near-death experience, a lack of oxygen to the brain also plays a contributing role. It is well known that oxygen deprivation can lead to hallucinations and may even contribute to the feeling of euphoria that is often reported. While the sample size available to researchers is limited, studies have indicated that individuals who reported a near-death experience during cardiac arrest also had lower levels of oxygen.

Researchers believe that oxygen deprivation could well result in people “seeing their lives flash before their eyes” or being transported to a place where they are surrounded by friends and relatives who have long since passed on. This remains just a theory, however, as the other available research seems to indicate that multiple factors contribute to the near-death experience, which include the aforementioned CO2 levels as well. It makes sense in this regard that near-death experiences are commonly reported by those resuscitated following a heart attack, as a heart attack occurs when blood is blocked from reaching the brain.

7Endorphins Are Released When The Brain Is Under Extreme Stress

04

It has been a long-held theory that much of what is felt during a near-death experience can be somewhat attributed to the release of endorphins and other chemicals by the brain due to extreme stress. While the idea that the entirety of a near-death experience could be attributed to endorphins has been somewhat dispelled, it could easily explain why so many individuals who have had a near-death experience feel no fear or anxiety over reaching life’s apparent terminus.

The release of these morphine-like chemicals during times of extreme stress was proposed by neuropsychologist Daniel Carr as an overarching explanation for near-death experiences, but it appears that it better explains the calm sensations and the lack of pain or worry during situations in which the body could be under extreme duress. So while you’d expect that in the stages approaching death, there would be “incredible pain and terror, the [near-death experience] surprises us with pleasure, calm, and peace,” a phenomenon believed to be the result of chemicals released by the brain.

6Brain Activity Spikes In The Moments Before Death

05

Heightened sensory perception is common in the near-death experience, and a recent study seems to indicate that these feelings of extrasensory perception may be caused by a significant spike in brain activity in the moments just before death. The study was conducted on rats and used a small sample size, so some in the scientific community have dismissed the results, but lead researcher Jimo Borjigin believes that it demonstrates the biological basis for the near-death experience.

The study relied on the implantation of electrodes into the brains of the rats so that researchers could study the levels of brain activity at the time of death. The results showed that the rats experienced what the researchers termed as “hyperconsciousness,” which aligns with the heightened senses many individuals associate with a near-death experience. According to Borjigin, “We found continued and heightened activity. Measurable conscious activity is much higher after the heart stops—within the first 30 seconds.”

5Veridical Perception May Be Confused With Anesthesia Awareness

06

Veridical perception (the out-of-body experience) may be rooted in a cause other than the aforementioned damage to the temporoparietal junction. Many out-of-body experiences may be nothing more than anesthesia awareness. Though awareness while under anesthesia is thankfully quite uncommon (about one in every 1,000 people experience it), it is possible that those who believe that they have had a near-death experience are simply constructing false memories through this awareness.

This may be the underlying reason that Pam Reynolds, whose near-death experience is often referenced, was able to recall so many details of an operation that involved inducing “hypothermic cardiac arrest,” rendering her effectively dead for several minutes. Reynolds was able to describe the shape of the saw used to cut open her skull and even recognized that the doctors were listening to the song “Hotel California” during the operation.

Reynolds’s near-death account seems like very powerful evidence of a near-death experience that includes veridical perception, but everything she recalled occurred while she was alive but under anesthesia. So while Reynolds may have thought she had a near-death experience, skeptics believe that this was more likely one of the rare cases in which a patient experienced anesthesia awareness.

4Altered Or Distorted Sense Of Time Plays A Significant Role

07

Dr. Eben Alexander, a neurosurgeon, wrote a book detailing his personal experience with near-death, which happened while he was comatose due to a bout with meningitis. According to Alexander’s own account, the near-death experience was several days in length and must have occurred while his cerebral cortex was shut down due to the coma, a fact that is paradoxical since many of the sensory details he experienced are typically rooted in the cerebral cortex. This led to his assertion that there was no material cause for his experience at all.

While the personal account of a neurosurgeon’s near-death experience led to many sensational headlines (Newsweek’s cover read “Heaven Is Real: A Doctor’s Experience of the Afterlife”), Dr. Oliver Sacks, himself a professor of neurology at NYU School of Medicine, offered a very simple explanation for Dr. Alexander’s account.

According to Sacks, “A hallucinatory journey to the bright light and beyond, a full-blown NDE, can occur in 20 or 30 seconds, even though it seems to last much longer. Subjectively, during such a crisis, the very concept of time may seem variable or meaningless. The one most plausible hypothesis in Dr. Alexander’s case, then, is that his NDE occurred not during his coma, but as he was surfacing from the coma and his cortex was returning to full function. It is curious that he does not allow this obvious and natural explanation but instead insists on a supernatural one.”

3Hallucinations And Actual Perceptions Use The Same Brain Systems

08

Those who have gone through a near-death experience quite frequently recall that everything seemed very real—in some cases, more real than anything they had ever experienced before. While many are resolute that what they perceived was most certainly not a simple hallucination, there is a very good reason why discerning between what is real and what is hallucinated is incredibly difficult.

According to Dr. Oliver Sacks, an individual who has had a near-death experience may believe it real simply because it seemed to be real, and with good reason: “The fundamental reason that hallucinations—whatever their cause or modality—seem so real is that they deploy the very same systems in the brain that actual perceptions do. When one hallucinates voices, the auditory pathways are activated; when one hallucinates a face, the fusiform face area, normally used to perceive and identify faces in the environment, is stimulated.”

2Near-Death Experiences May Be Caused By Epileptic Activity In The Temporal Lobes

09

While ecstatic seizures are quite rare and occur in just a small sample of the population affected by temporal lobe epilepsy, a spike in epileptic activity in the temporal lobe may be responsible for the visions of God or of heaven that so many see during a near-death experience. A study devised by Orrin Devinsky enabled him and other researchers to “perform clinical and video EEG monitoring in patients as they are having ecstatic-religious seizures, and thus to observe the precise coinciding of their ‘theophanies’ with seizure activity in temporal lobe foci (nearly always these are right-sided).”

Historical figures that include Fyodor Dostoevsky and Joan of Arc are believed to have been influenced by temporal lobe epilepsy, which included feelings of ecstasy and the presence of something otherworldly. It may indeed be the case that those who have had a near-death experience may have had similar epileptic activity in the temporal lobes.

Dostoevsky once said the following of his ecstatic seizures: “I would feel the most complete harmony in myself and in the whole world, and this feeling was so strong and sweet that for a few seconds of such bliss I would give 10 or more years of my life, even my whole life perhaps.” Dostoevsky’s description sounds quite similar to those made in accounts of near-death experiences, lending even more credence to the theory that epileptic activity in the temporal lobe may play a significant role.

1Neurology And Religion Are Not Necessarily Contradictory

10

While there have been countless studies done on near-death experiences, researchers have not necessarily disproved the totality of the experience as the simple result of normal neurological function. There is the famous case of “Maria,” an individual whose near-death experience involved veridical perception during cardiac arrest. After being resuscitated, she told a social worker that she had gone outside the hospital and seen a tennis shoe on the ledge of a window on the third floor. The social worker not only found the shoe but also recognized that there was no other way for her to have known all of the details she had relayed.

Another famous near-death experience is that of Dr. Tony Cicoria, who was struck by lightning in 1994. A few weeks after the lightning strike, Dr. Cicoria, who possesses a doctorate in neuroscience, suddenly felt overcome with a desire to learn to play and write music. He was changed by the experience, and according to his own account, “saw no contradiction between religion and neurology—if God works on a man, or in a man, He would do so via the nervous system, via parts of the brain specialized, or potentially specializable, for spiritual feeling and belief.”

J. Francis Wolfe is a freelance writer and a noted dreamer of dreams. When he’s not writing, he is most likely waiting for “just one more wave,” or quietly reading under a shady tree.

]]>
https://listorati.com/10-scientific-explanations-for-near-death-experiences/feed/ 0 14244