Schlieren Optics

Published 9 years ago in Science. Submitted by moese

Demonstration of an optical technique that allows us to see small changes in the index of refraction in air. A point source of light is reflected from a concave mirror and focused onto the edge of a razor blade, which is mounted in front of the camera. Light refracted near the mi…
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Military Secrets: How to open velcro silently

Published 10 years ago in Awesome

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Richard Turner - The Cheat

Published 10 years ago in Awesome. Submitted by Sizzlik

Richard Turner has achieved legendary status in the world of card magicians. However, Richard Turner is not a magician nor does he claim to be one—he demonstrates card cheating. Of course, all of this is made even more impressive given that Mr. Turner is blind. The bio-segm…
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Kalimba

Published 10 years ago in Awesome

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Bob Marley is alive! (kind of)

Published 10 years ago in Awesome. Submitted by Malakyte

Close your eyes and listen...

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