Sooooooooo, what's yer point ?
Mike Frerichs wrote:
>
> Sorry to have to point this out also, but you're confusing audio waves with
> electromagnetic waves. They have nothing at all to do with each other. Audio
> waves are just waves of compressed air (or water, or any other physical
> substance), which for humans, are in the general range that you mentioned (20
>-
> 20KHz). Electromagnetic waves, on the other hand, are what is generally
> referred to as radiation. The other items you mentioned (Radio, Micro,
>Infrared
> (heat), Visible Light, Ultraviolet, X, Gamma, Cosmic) are all electromagnetic
> radiation.
>
> Mike Frerichs
>
> "Lin, Gary" wrote:
>
> > The electromagnetic wave spectrum starts at Audio (0 Hz, though you
> > generally don't hear <20, to 20 KHz) then goes through Radio (20 KHz
> > -300,000 MHz), Micro, Infrared (heat), Visible Light, Ultraviolet, X, Gamma,
> > Cosmic. Wavelength starts at infinity and shortens as frequency increases.
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