A Mystery: Why Can't We Walk Straight? - NPR
2010年11月22日 · Try this: Put a blindfold on someone, take them to a park or a beach or a meadow and ask them to walk for as long as they can in a straight line. Then watch what happens: So why, when...
Why can't Humans walk in a straight line : r/biology - Reddit
Evidence suggests that humans are unable to walk in a straight line without some point of reference such as the sun, ocean, mountain. An example would be a blind folded man/woman is asked to walk in a straight line and ends up turning or looping around, but in their mind feel they have been walking perfectly straight.
Single transverse palmar crease - Wikipedia
In humans, a single transverse palmar crease is a single crease that extends across the palm of the hand, formed by the fusion of the two palmar creases.
Robert Krulwich: Why Can't We Walk Straight? - YouTube
2010年11月22日 · Try as you might, you can't walk in a straight line without a visible guide point, like the Sun or a star. You might think you're walking straight, but as NPR's Robert Krulwich reports, a map...
Why Do Humans Walk in Circles? - Live Science
2011年8月5日 · In the absence of landmarks, people curve around in tight loops, all the while believing themselves to be walking in straight lines. Recent research has made gains in understanding why.
Why Can't (Blindfolded) People Walk Straight? - Mental Floss
Krulwich describes a series of experiments in which blindfolded people are asked to walk (or drive) in a straight line -- and then maps are made showing the routes they walk instead.
Turn, turn, turn: The mystery of why humans can’t walk straight
2010年11月24日 · Here’s an idea that combines science with exercise (well, a bit of exercise): Bet everybody that they can’t walk across an open field in a straight line while blindfolded. It can’t be done. As...
Can blind people, or blind-folded people, walk in a straight line?
2011年2月13日 · It's actually not that surprising if you think about it, that blind people are not better at walking a straight line than sighted people because the brain of people trying to walk in a straight path while blindfolded are blind only has internal information, only information that comes from the body itself, from the sense of balance, the ...
Why can’t blindfolded people walk in a straight line? It’s a ... - Aeon
2015年11月20日 · Strange as it might seem, people are incapable of walking or swimming in a straight line when they are blindfolded. Perhaps even stranger, no one seems to quite know why. This short animated video from NPR and Radiolab’s Robert Krulwich dissects one of the more perplexing and enduring mini-mysteries of science.
technology - How did people make things perfectly straight?
2021年1月2日 · One way of testing straightness is by use of a taut string. This test recalls indeed the origin of our word line, Latin linea; it is related to linen and lint. Sailors use the word in its primary sense in calling their ropes lines. The same test is implicit in our word straight, which is idientical historically with stretched.
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