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TED: Jinha Lee: Reach into the computer and grab a pixel - Jinha Lee (2013)
Rob WilsonBrilliant
The Pros & Cons Of Being Tall
Standing up too quickly can be a doozy.
Decoding Rental Ads
That was the last time I ever went to see an apartment described as having a “Quaint view”.
TED: Taylor Wilson: My radical plan for small nuclear fission reactors - Taylor Wilson (2013)
TED: Dan Ariely: What makes us feel good about our work? - Dan Ariely (2012)
Rob WilsonI think this is one of the best talks
VIDEO: Free beer as brewery truck spills
Rob WilsonIt's still theft
Watch Jimi Hendrix’s ‘Voodoo Chile’ Performed on a Gayageum, a Traditional Korean Instrument
Jimi Hendrix’s 1968 song “Voodoo Chile” is already a classic. But it becomes all the more so when you see it performed by Luna Lee on a Gayageum, a traditional Korean stringed instrument. The first Gayageum dates back to the 6th century. If you like seeing western rock standards reimagined within an Asian aesthetic, then you won’t want to miss: The Talking Heads’ “This Must Be the Place (Naive Melody)” Performed on Traditional Chinese Instruments.
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Related Content:
‘Electric Church’: The Jimi Hendrix Experience Live in Stockholm, 1969
Hendrix Plays Sgt. Pepper’s Lonely Hearts Club Band, 1967
Enter Jeff Slatnick’s Wonderful World of New-Fangled and Resurrected Instruments
Watch Jimi Hendrix’s ‘Voodoo Chile’ Performed on a Gayageum, a Traditional Korean Instrument is a post from: Open Culture. You can follow Open Culture on Facebook, Twitter, Google Plus and by Email.
Humans Fall for Optical Illusions, But Do Cats?
Most “optical illusions” are not really optical. They have less to do with the way the eyes work than with the way the brain processes the information sent to it from the eyes. For this reason, many scientists prefer to call them visual illusions. So if visual illusions are a trick of the brain, and human brains differ from the brains of other animals, does that mean our visual illusions are uniquely human?
The answer would appear to be no, judging from the cute video below from YouTube. The kitten is falling for the “rotating snakes illusion” developed in 2003 by Japanese psychologist Akiyoshi Kitaoka. The rotating snakes (click here to view in a larger format) are an example of the “peripheral drift illusion,” a phenomenon first described in 1999 by Jocelyn Faubert and Andrew Herbert of the University of Montreal. Cats are very adept at perceiving motion in their peripheral vision. It helps them elude predators and home in on their own prey. But this kitty is thrown for a loop by the illusory motion of the rotating snakes.
The peripheral drift illusion occurs when circularly repeating figures with regular sawtooth patterns of light and dark are viewed in the periphery. You’ll find that if you move your eyes around the various circles, for example going from center point to center point, the circles in your peripheral vision will appear to be moving but the one you are focused on will not. If you stop moving your eyes, a moment later the circles will all appear to stop moving. In the abstract of their 1998 paper (open PDF), Faubert and Herbert write:
Illusory motion is perceived in a dark-to-light direction, but only when one’s gaze is directed to different locations around the stimulus, a point outside the display is fixated and the observer blinks, or when the stimulus is sequentially displayed at different locations whilst the observer fixates one point. We propose that the illusion is produced by the interaction of three factors: (i) introducing transients as a result of eye movements or blinks; (ii) differing latencies in the processing of luminance; and (iii) spatiotemporal integration of the differing luminance signals in the periphery.
via Stephen Law
Humans Fall for Optical Illusions, But Do Cats? is a post from: Open Culture. You can follow Open Culture on Facebook, Twitter, Google Plus and by Email.
Troll Booth
Rob WilsonClassic