World's Lightest Solid!

Published 5 years ago in Technology. Submitted by sux2bu

Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically…
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FAKE DEAF-MUTE & PETITION SCAM IN EUROPE. DON'T FALL FOR THIS!

Published 4 years ago in Weird. Submitted by Geekster

Are you travelling to Europe? Please be aware of this scam! Watch the FULL video to avoid. These people are absolutely disgusting, pretending to be deaf-mute just to collect money for THEMSELVES. They are not part of any charity. Watch out in every major European city.

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A 3D Visualization Of The Anatomy Of A Tornado

Published 9 years ago in Nature. Submitted by Kopi

For a look that goes beyond blurry news footage or two-dimensional diagrams

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Is there a Purpose to Living? - Alan Watts

Published 5 years ago in Inspirational. Submitted by thundersnow

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Organ with reed pipes from paper

Published 5 years ago in Other. Submitted by manro

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