From: firstname.lastname@example.org (William J. Beaty)
Subject: Re: Make infrared goggles inexpensively (like $10!!!)
Date: 19 Sep 2002 00:45:15 -0700
References: <email@example.com> <firstname.lastname@example.org> <email@example.com>
NNTP-Posting-Date: 19 Sep 2002 07:45:16 GMT
Jonathan Kirwan wrote in message news:...
> There is nothing more sinister in it than that. I just don't agree
> with your analogy.
I agree that further exploration of our disagreement is nearly
worthless. I can't resist one last try though.
Audio and optical systems can have narrowband emitters, and can
have filter responses with passbands and rolloffs. Therefore
they are analgous. That's always been the reason I said so. You
might not like it, but any attempt to "disprove" my analogy is
silly because you'd have to show that optics (or acoustics) lacks
such things as bandpass filters. Appeals to QED or to nonlinear
effects at high intensities have no bearing because they don't
change my premise. Do sound and light both allow bandpass filters?
Yes? Then they're analogous.
The point of my analogy is to *lump* two disparate phenomena
together, to notice their similarities, and to thereby gain
insights. Perhaps you operate by the opposite philosphy called
"splitter," where reductionism is king, and where my "lumper"
behavior seems a deep wrongness, even blasphemy. Acoustics and
EM aren't the same, therefore thou shalt not notice similarities?
If so, then no, my analogy is not eeeevil, it's just an alternate
engineering approach, lumper rather than splitter.
> But I like your experimental attitude and was interested in
> what you'd tried, all the same, and I've no quibble with
> you on that score.
The "goggles" article is aimed at kids in high school. Anyone
here can blow it away for effectivness: just buy a $60 night
vision scope on eBay and stick an IR-pass filter on the front
to convert it into a high-gain, very NON-passive IR viewer.
Now if you instead want a REALLY impressive IR device for $10,
see Phil Hobbs' pixel array camera on ferroelectric film.
$10 Thermal Imager (pdf)
William J. Beaty http://staff.washington.edu/wbeaty/
Research Engineer UW Chem Dept, Bagley Hall RM74
firstname.lastname@example.org Box 351700, Seattle, WA 98195-1700