March 22, 2013
Aerogel — finally, you can have what NASA used to capture stardust*
From reader dc3 comes news that aerogel — the world's lowest density solid, the real deal, the stuff Scientific American got all misty-eyed writing about when it first appeared on the scene years ago — is now available to anyone who can fog a mirror (and provide a valid credit card number).
From Wikipedia: "Aerogel was first created by Samuel Stephens Kistler in 1931, as a result of a bet with Charles Learned over who could replace the liquid in 'jellies' with gas without causing shrinkage."
26mm x 7mm aerogel disc: $35.
March 22, 2013 at 04:01 AM | Permalink
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Posted by: tamra | Mar 22, 2013 7:05:03 PM
I bought some 6 years ago and passed it to a friend over a large communal dinner... "feel how light and how hard it is" says I. He duly squeezed and smashed it!
He did me a favour. I wanted to make the world's lightest ashtrays from it.
Posted by: Fred | Mar 22, 2013 11:12:02 AM
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