"time reversal acoustics"
Udhay Shankar N
udhay at pobox.com
Sat Apr 22 14:05:26 EDT 2006
I found this off a link from Schneier's newsletter. Can anybody
comment on this?
Udhay
http://www.physorg.com/news12093.html
>For every burst of sound, there must exist a sound that bursts in
>reverse, according to the theory of time reversal acoustics. From
>their discoveries of some surprising characteristics of mediums and
>frequencies, scientists have gained insight into acoustic time
>reversal, which could impact applications such as sending
>confidential messages in cryptography.
--
((Udhay Shankar N)) ((udhay @ pobox.com)) ((www.digeratus.com))
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