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Old 12-15-2012, 09:29 PM
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Janet Janet is offline
Bizarre unknowable space alien
 
Join Date: Mar 2008
Location: Flint, MI
Posts: VXLIX
Default Re: Drive by science

This is kind of cool. Forensic scientists in Britain have been recording the background hum from the power grid and use it to authenticate recordings. They can tell if it has been faked by whether the hum cuts out or is broken up.
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