[GRLUG] OFF TOPIC - Speaking of Infrared...
Michael Mol
mikemol at gmail.com
Thu Jan 28 21:08:11 EST 2010
On Thu, Jan 28, 2010 at 8:02 PM, Bob Kline <bob.kline at gmail.com> wrote:
> The peak wavelength for a human body
> thermal spectrum is 10 microns - in the so
> called long-wave infrared range. You shine
> if you're standing out in the snow, but the
> human body is not really very hot. About
> the same as your house interior, which is
> that temperature, by design. So you don't
> stand out much.
> See http://en.wikipedia.org/wiki/Infrared
> -- Bob
I should add that my core body temperature is nominally 96F, but my
outer surfaces are frequently down around 80F, and my hands are often
close to ambient (or colder, if I've recently washed them.)
--
:wq
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