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Well, if you put enough energy in anything....  you don't feel radio
waves, but if the energy level is high enough you will feel the burn
from them.  With high energy ultra sound, you can also get injured if I
am not mistaken.

Magic wrote:
> 
> "J. Coon" wrote:
> 
> > It wasn't the 5Hz tone I was referring to.  The original post mentioned
> > frequencies above 20Khz and used the 5Hz as an example.  Anyone that has
> > seen any of the Starwars movies has felt the low freq rumble.
> 
> If you play a high frequency sound loud enough you will feel it. I blasted a 30kHz
> tone at my brother (much to his annoyance) and he said it felt like someone had
> hold of the back of his head and was squeezing it slightly.... and yes I was using
> an ultrasonic transducer - I bought one from Maplin to experiment with. I am not
> sure of the exact volume of the tone, but it was around 90dB according to the
> specifications on the datasheet. Apparently prolonged exposure to intense volume
> high frequency sounds can damage your brain - how does this work, or shouldn't I
> ask?
> 
> --
> Magic
> 
> Location : Portsmouth, England, UK
> Homepage : http://www.mattnet.freeserve.co.uk
> EMail : mailto:[EMAIL PROTECTED]
> 
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--
Jim Coon
Not just another pretty mandolin picker
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?


My first web page

http://www.tir.com/~liteways/
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