[sdiy] DONT TOUCH!

[CHoaglin at aol.com]

In a message dated 2/28/02 9:14:28 PM Eastern Standard Time, 
pfperry at melbpc.org.au writes:


> I believe tis is not ultrasonic, but works by looking at the relative time
> the shockwave (generated by all faster-than-sound projectiles) reaches a
> 

Hmm..This would have difficulty with subsonic muzzle velocites then, wouldn't 
it?

-Chris
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