Spam:[extropy-chat] PRIVACY: GPS darts

Acy James Stapp astapp at
Thu Apr 22 23:46:17 UTC 2004


"the behavior of bovine femoral bone is essentially resistive"

I doubt it would make a good antenna. Bone is ~65-70% hydroxyapatite,
which is (by mass) 400.8/1004.643, or ~40%, giving around 25%

I was unable to quickly find the resistivity of pure hydroxyapatite.

[ -----Original Message-----
[ From: Don Dartfield
[ On Thu, 22 Apr 2004, Mike Lorrey wrote:
[ > You are forgetting one important fact: the human skeleton is made of
[ > calcium, a metal.
[ I was wondering about something similar -- could a tiny 
[ transceiver use 
[ your body, or some portion of it, as an antenna?

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