Skip to main content

Home/ TOK Friends/ Group items tagged livescience

Rss Feed Group items tagged

sissij

You Really Can Judge People by the Company They Keep | Big Think - 0 views

  • There is an old adage, “take stock of the company you keep”.
  • As it turns out, we are more tolerant of people who have similar negative personality traits as us.
  • This tendency was strongest, however, in one trait above all: antagonism. With the connection being most prominent for the the trifecta of narcissism, psychopathy, and Machiavellianism.
  • ...2 more annotations...
  • Now, antagonistic people didn’t claim to like these traits in other people. They rated them as traits of average likability in other people, but this was much higher than the resounding disapproval of the trait given by people who did not claim to be antagonistic. A person with a generally negative trait will tend to tolerate their own trait in others.
  • Questions remain with this data, all of the subjects self-reported their tendencies to these personality traits. Would a person who doesn’t know they are antagonistic still think of it as an average trait? Were the subjects honest? The study also only asked about likability, there was no inquiry into if they would interact with people who had those traits.
  •  
    There is a old saying in China says that animals gather by species, human gather by interests. Basically, it is saying that people with similar interest or characteristics tends to hang out together. There is another old saying in China saying that if you always hang out with bad people, you will eventually turn bad as well. This means that people around you can change you to behave like them. I think this phenomenon in human society is reasonable and follows the logic of revolution because human are social animals. In order to get along with a group, you have to either find a group of people that are just like you or change yourself to fit in that group of people.
courtneylang3

Magic Viking Sunstone? Crystal's Secret Revealed by Scientist Read more: http://www.fo... - 0 views

  •  
    "The Vikings could have discovered this, simply by choosing a transparent crystal and looking through it through a small hole in a screen," study researcher Guy Ropars wrote in an email to LiveScience. "The understanding of the complete mechanism and the knowledge of the polarization of light is not necessary." Is knowledge of mechanism and process essential in understanding a scientific discovery? This also shows how be develop from believing in magical explination to scientific
demetriar

Brain Processes Music Much Like Spoken Language, New Study Shows - 1 views

  • "The areas of the brain related to language ramped way up when the musical behavior was spontaneous between the two musicians,"
  • "During the improvised exchanges, the parts of the brain that interpret the meaning of language — semantics — were completely deactivated,"
  • This could suggest there is a fundamental difference between how the brain processes meaning for music and language.
  • ...1 more annotation...
  • "Until now, studies of how the brain processes auditory communication between two individuals have been done only in the context of spoken language," Limb said in a statement. "But looking at jazz lets us investigate the neurological basis of interactive, musical communication as it occurs outside of spoken language."
Laura Gates

Too Aware? The Downside of Mindfulness Revealed - 1 views

  •  
    Touches on the "Ignorance is bliss" v. "Knowledge is power" debate.
anonymous

Astrology: Why Your Zodiac Sign and Horoscope Are Wrong - 0 views

  • Your zodiac sign corresponds to the position of the sun relative to constellations as they appeared more 2,200 years ago!
  • Astronomy can explain the position of the stars in the sky but it’s up to you to determine what, if anything, their alignment signifies
  • your zodiac sign is not what you think it is, and your corresponding horoscope can't be right.
  • ...1 more annotation...
  • This means that the signs have slipped one-tenth—or almost one whole month—of the way around the sky to the west, relative to the stars beyond.
Javier E

What that Cruz-Rubio 'He doesn't speak Spanish' thing was about - The Washington Post - 0 views

  • America, this was one of those moments full of history and emotion and deep social meaning that a good portion of the audience likely did not fully comprehend. But, it’s worth noting because that entire exchange was made possible by decades of misguided, scientifically unsound and bigoted thinking that plenty of Americans continue to laud every day.
paisleyd

What's the Difference Between the Right Brain and Left Brain? - 0 views

  • The two hemispheres communicate information, such as sensory observations, to each other through the thick corpus callosum that connects them.
  • left hemisphere
  • carrying out logic and exact mathematical computations.
  • ...6 more annotations...
  • left brain pulls it from your memory.
  • face recognition and processing music.
  • right hemisphere
  • helps us to comprehend visual imagery and make sense of what we see.
  • increasing its processing capacity and avoiding situations of conflict where both sides of the brain try to take charge."
    • paisleyd
       
      The mind is strong but it has its flaws. Is that why the right side of our brain seems to take in most of the patterns we see. At the same time the right side of our brain seems to focus less on logic and more on emotion.
caelengrubb

How Isaac Newton Changed the World | Live Science - 0 views

  • To the probable dismay of some befuddled calculus and physics students the world over, Isaac Newton didn't just live, he grew up and lived long enough to become the single-most influential scientist of the 17th-century.
  • Newton's wide range of discoveries, from his theories of optics to his groundbreaking work on the laws of motion and gravity, formed the basis for modern physics.
  • The true genius of his work, experts think, is how he ultimately took those theories and applied them to the universe at large, explaining the motions of the Sun and planets in a way that had never been done before.
  • ...6 more annotations...
  • Upon getting bumped on the head by a falling apple, Newton airily dreams up the laws of gravity and the rest, as they say, is history
  • When the black plague closed Cambridge University, where he was a student, for two years starting in 1665, he spent the long months locked up at home studying complex mathematics, physics and optics.
  • It was during this fruitful time that Newton, with the help of a crystal prism, became the first to discover that white light is made up a spectrum of colors
  • He also developed the concept of infinite-series calculus, the kind of scary math studied today by engineering and statistics scholars.
  • By 1666, Newton had even laid the blueprints for his three laws of motion, still recited by physics students everywhere:An object will remain in a state of inertia unless acted upon by force.The relationship between acceleration and applied force is F=ma.For every action there is an equal and opposite reaction.
  • Across the pages of the Principia, Newton breaks down the workings of the solar system into "'simple"' equations, explaining away the nature of planetary orbits and the pull between heavenly bodies.
caelengrubb

Even Non-Amputees Can Feel a Phantom Limb | Invisible Hand | Live Science - 0 views

  • Amputees often suffer from a phenomenon known as phantom limb syndrome, but researchers now say that non-amputees can also be made to feel phantom limbs, and even pain, when knives are jabbed into nonexistent hands.
  • In phantom limb syndrome, people suffer from the illusion that a limb exists even if it is missing
  • Phantom limbs occur in 95 percent of amputees who lose an arm or leg
    • caelengrubb
       
      I didn't know that it was this common
  • ...8 more annotations...
  • Doctors have known of this syndrome since the 16th century. (After Lord Horatio Nelson lost part of his right arm during a battle in 1797, he said he felt fingers pressing into his missing palm, sensations the admiral cited as direct evidence for the existence of a soul.)
  • Not only can the mind fool people into thinking a missing limb is there when it is not, but experiments prove that people can be fooled into thinking another object is part of them. The deception is known as the rubber hand illusion.
  • To play this trick, start with a table with a screen running up its middle, and sit in front of the table so the right arm is hidden from view. A fake right arm is visible on the table. If both the right hand and the rubber hand are simultaneously stroked with a brush for a few minutes, a 1998 study found eight of 10 volunteers experienced the disarming illusion that the dummy hand was their hand.
  • In another experiment, the volunteers were asked to close their eyes and quickly point with their left hand to where they perceived their right hand was. Those experiencing the invisible hand illusion would point at the invisible hand rather than their real hand.
  • The scientists had previously found objects that did not resemble body parts, such as a block of wood, cannot be experienced as one's own hand, "so we were extremely surprised to find that the brain can accept an invisible hand as part of the body,
  • "We believe that the crucial difference lies in that we are very used to feeling our hands without seeing them, and we can move our hands in empty space but not through solid objects," Guterstam said. "The empty space close to the body represents an array of potential locations for the limbs."
  • The researchers scanned the brains of 14 volunteers using functional magnetic resonance imaging (fMRI). Perceiving the invisible-hand illusion led to increased activity in the same parts of the brain that are normally active when individuals see their real hand being touched or when participants experience a prosthetic hand as their own.
  • There could be important differences between the invisible hand illusion and phantom sensations, Ehrsson said. "For example, signals from damaged nerves could contribute to phantom limbs and phantom pain in a way that would be different from our illusion in limbed-individuals," Ehrsson said.
krystalxu

Child Brains Organized Differently Than Adult Brains - 0 views

  • Instead of having networks made of brain regions that are distant from each other but functionally linked, most of the tightest connections in a child's brain are between brain regions that are physically close to each other.
  • It clearly shows a switch from localized networks based on physical proximity to long-distance networks centered on functionality,
  • "They're trying to solve the task of being a brain in a human body,"
manhefnawi

The Fascinating Science Behind Why We See 'Faces' In Objects | Mental Floss - 0 views

  • People can discern faces in meaningless clouds
  • There's a name for this uncanny ability to see faces everywhere: pareidolia (roughly, from the Greek for "wrong shape").
  • Human brains are exquisitely attuned to perceiving faces—in fact, there's an entire region of the brain called the fusiform gyrus that is dedicated to it. Its functions are evident even from early childhood: Studies have shown that shortly after birth, babies display more interest in cartoon faces with properly placed features than in similar images where the features are scrambled.
  • ...5 more annotations...
  • Others have found that paranormal and religious believers are more prone to pareidolia than skeptics and nonbelievers. Although believers and nonbelievers had equivalent sensitivity to faces, the paranormal and religious believers had lower thresholds for reporting that a face was present than nonbelievers did, possibly due to being more open to the suggestion that the images might contain faces.
  • Pareidolia can be exacerbated in cases of fatigue and in some neurological diseases, such as Lewy body dementia
  • It may not be a strictly human phenomenon either. Research has shown that rhesus monkeys see illusory facial features on inanimate objects such as toasters or sliced vegetables.
  • Pareidolia extends beyond human likenesses: In 2007, a "monkey tree" in Singapore attracted thousands of visitors, who swore that a bizarrely shaped callus growing on a tree was a manifestation of either the Chinese deity Sun Wukong (also known as the Monkey King) or the Hindu monkey god Hanuman.
  • the brain makes much ado about nothing.
peterconnelly

Why pilots are seeing UFOs | CNN - 0 views

  • For centuries, people have witnessed unexplained lights in the sky and thought that perhaps they might be ghosts or angels. However, it was in the summer of 1947 when a different explanation became popular. Following a widely reported incident over Mt. Rainier in Washington state, people began to believe that these unidentified flying objects (UFOs) are actually alien spacecraft prowling the Earth.
  • Over the past 70 years, more than ten thousand similar reports have been made.
  • Some accounts simply arose from nothing more than the fevered imaginations of UFO enthusiasts.
  • ...5 more annotations...
  • In 2004, Navy fighter jet pilots operating from the USS Nimitz aircraft carrier reported seeing UFOs off the coast of San Diego. And, more recently, other military pilots flying with the USS Theodore Roosevelt in the Atlantic made similar claims. The news of those accounts became public knowledge from a story in the New York Times and a new miniseries on the History Channel.
  • The problem is that many people jump directly from the “unidentified” in “UFO” to “flying saucer.” And that’s just too large a jump to be reasonable. There is simply no credible evidence that the Earth is being visited by aliens. There are no artifacts, no clear photographs, no captured aliens, no alien bodies – nothing.
  • An eyewitness can be an unreliable source of information and, in the case of something as extraordinary as the observation of alien spacecraft, pedestrian evidence simply won’t do. As Carl Sagan often said, extraordinary claims require extraordinary evidence.
  • Even though there were multiple observations of multiple phenomena, what is missing is multiple reports of the same phenomenon. It would be hasty to link these independent observations together.
  • But I’m going to need much better evidence than what we have so far. In the meantime, let’s keep an eye on these reports. You know… just in case.
‹ Previous 21 - 33 of 33
Showing 20 items per page