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From: rubin@cis.ohio-state.edu (daniel j rubin)
Newsgroups: sci.military
Subject: Re: Offensive use of Sound possible?
Message-ID: <1991Jan24.044530.26622@cbnews.att.com>
Date: 24 Jan 91 04:45:30 GMT
References: <1991Jan21.041118.5204@cbnews.att.com> <1991Jan22.021825.22248@cbnews.att.com>
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From: rubin@cis.ohio-state.edu (daniel j rubin)

>From: henry@zoo.toronto.edu (Henry Spencer)
>>From: tipmo@oak.circa.ufl.edu
>>	... I know that sound waves 
>>can be quite destructive if focused/handled/played-with enough and I was
>>wondering if the military has looked into this destructive capability...
>
>Generating really high-power sound waves, and focusing them usefully,
>is relatively difficult.  By far the easiest way to generate a powerful
>sound pulse is one that is already in use:  detonate an explosive charge
>and let the blast wave do damage.
>--

I always wondered why the US did not research sound waves for a blanket 
defense of the country ( maybe they have and it will not work with the 
present technology ).  I would think that a super high power ultrasonic
transducer array of some sort could be placed on top of very tall towers all 
across the nation in a grid with one every several miles.  If there was a
national nuclear or whatever attack these transducer would direct a powerful
wave of ultrasonic sound upward with every one of the stations in phase
with each other.  This huge ultrasonic wave generated in the middle-atmosphere
would break up any warheads, plane or whatever that was in the atmosphere
directly over US territory.  I would think this would be less expensive
and more reliable than the Star Wars theory.  I do not know enough about 
ultrasonic transducer to say whether or not this is possible but it could be
researched if it is not possible now.... Just a thought...

							- Dan Rubin