Re: [ot] Sonic Devices

I think I saw an episode of "Bugs" about this kinda technology, but took
it 
a bit further. I don't think I really believe in inverse sound waves,
but 
hey, its science fiction! I suppose as long as you know wha the
frequency 
is, you coudl generate inverse. But if the mine was switched off you'd
shake 
yourself apart (not good!)

Richard

>From: "Bif Smith" <bif@bifsmith.fsnet.co.uk>
>Reply-To: gzg-l@csua.berkeley.edu
>To: <gzg-l@csua.berkeley.edu>
>Subject: Re: [ot] Sonic Devices
>Date: Thu, 21 Mar 2002 12:28:08 -0000
>
>Or just ask lotus (the car people). They have designed a system that
can be
>fitted to cars that uses a set of microphones and broadcasts through 
>speaker
>a inverse sound wave to the incoming one that cancels the original
wave,
>resulting in peace and quite (or in another bit, could make even a ford
4
>cldr engine sould like a porche flat 6).
>
>BIF
>(probably getting the terminology wrong)
>
>
>----- Original Message -----
>From: Oerjan Ohlson <oerjan.ohlson@telia.com>
>To: <gzg-l@csua.berkeley.edu>
>Sent: Thursday, March 21, 2002 5:52 AM
>Subject: Re: [ot] Sonic Devices
>
>
> > Richard Kirke wrote:
> >
> > >Well, to use a sonic device to cause real damage, you need
something 
>that
> > >would resonate (vibrate at a specific frequency); this way the
maximum
> > >sonic (kinetic, but sonic sounds cooler) energy eventually casuing
> > >problems for the crew/holder, and eventualy breakage.
> > 3) All sorts of different parts of a vehicle *have* different
resonant
> > frequencies. If they don't, the vehicle will be pretty intolerable
to
>drive
> > due to high noise levels, and in bad cases even risks shaking itself

>apart
> > simply by driving around.
> >
> > Regards,
> >
> > Oerjan
> > oerjan.ohlson@telia.com
> >
> > "Life is like a sewer.
> >   What you get out of it, depends on what you put into it."
> > -Hen3ry
> >
> >
>

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