Watch MC Escher make art in this short documentary

M.C. Escher: Adventures in Perception (1971) is a 20-minute Dutch documentary about the artist and includes scenes of him working in his studio. From Open Culture:

Obsessed with perspective, geometry, and pattern (Escher described tessellation as “a real mania to which I have become addicted”), his images have, by the count of mathematician and Escher scholar Doris Schattschneider, led so far to eleven separate strands of mathematical and scientific research.

The twenty-minute Adventures in Perception, originally commissioned by the Netherlands’ Ministry of Foreign Affairs, offers in its first half a meditation on the mesmerizing, often impossible world Escher had created with his art to date. Its second half captures Escher in the last years of his life, still at work in his Laren, North Holland studio. It even shows him printing one of the three titular serpents, threaded through a set of elaborately interlocking circles, of his very last print Snakes. He never actually finished Snakes, whose patterns would have continued on to the effect of infinity, and even says here of his officially complete works that none succeed, “because it’s the dream I tried for that can’t be realized.”

(via Neatorama)

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You can hear the difference between hot and cold water

Water is viscous. With heat, the viscosity drops. And you can hear the difference in its splash.

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Get high for free: stare in a friend's eyes for ten minutes

Induced dissociative states are the best dissociative states, and one cheap and easy way to get there is to stare into someone's eyes for about ten minutes. More researchers are looking into the phenomenon. Read the rest

WATCH: More DeepDream obsessions

Since Cory posted about the Deep Dream image recognition algorithm last month (and Rob earlier today) it's inspired an explosion of iterations like Roelof Pieters' DeepDreamed Fear & Loathing in Las Vegas. Read the rest

How refined is your color perception?

This unscientific but fun timed eye test asks viewers to guess which square is a slightly different shade than the others. Prepare for a minute or so of eye-melting challenge! Read the rest

Hearing lips and seeing voices

This video explains the weirdness of the McGurk effect, a perceptual illusion demonstrating that understanding speech is not just about what we hear, but also what we see. You can learn more about the McGurk effect at Yale's Haskins Laboratories dedicated to the science of the spoken and written wordl. (via Imaginary Foundation) Read the rest

Whistling Speech

I really love the research that they're doing over at Yale's Haskins Laboratories: instead of studying speech perception and production in terms of faithfully replicating alllll of the sounds we make with our mouths, (like the minute clicks, pops, and hisses of consonants), the team is proposing that all we need to understand speech is to track and re-create a few select resonances of the vocal tract. I like to think of speech production in this context as a series of bottles with varying levels of water in them--the mouth is one bottle that changes pitch resonance when you move it to open it or close it, the nasal cavity another, and so on throughout the vocal tract. It ends up sounding like a bunch of complicated melodies that are then combined into a complex micro-tonal harmony, a.k.a., we're all better at perceiving and making music than we think we are!

The examples below break it down into isolated sine-wave patterns that you can combine yourself to build a sentence. What do you think? How easily can you hear words emerge?

Tone combinations

Play Tone 1 alone | Play Tone 2 alone | Play Tone 3 alone | Play Tones 1 and 2 together

Play Tones 1 and 3 together | Play Tones 2 and 3 together

If you like this, you can go here for more interactive demonstrations, or check out this great sine-wave-synthesized Robert Frost poem.

Thanks to Robert E. Remez, as well as Phillip Rubin and Jennifer Pardo at Haskins Labs for allowing me to embed their work here. Read the rest

Wendy Carlos and color perception

BB guestblogger Andrea James on Wendy Carlos' experiments in color perception.