Re: Nano News and Human Extinction

From: hal@finney.org
Date: Thu Sep 14 2000 - 11:06:08 MDT


Scott Badger forwards,
> http://www.chicagotribune.com/news/local/article/0,1051,SAV-0009120250,00.html
> Preliminary tests show that ultrananodiamonds are
> 1,000 more wear-resistant than silicon, and 1 million
> times denser than conventional crystals.

A million times denser than conventional crystals? Conventional rock
crystals weigh about 5 gm/cc. Does their diamond weigh 5 million grams
per cc? 5 metric tons per cubic centimeter? I don't think so, unless
they're talking about neutronium.

Hal



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