From:
Norman Watts <Norman_Watts@zzzzzzz>
Date:
Thu, 18 Aug 2005 10:11:12 -0400
Subject:
speaking of fogging
Hi Gary,
Regarding the fogging problem. When I was scuba diving we solved the
problem by spitting in the mask and rinsing it briefly, this smears
protein all over the glass and the water spreads out all over the
protein, forming a clear sheet. That doesn't work too well above water
because the protein will dry to a film and you are back to the haze. In
air you will have to improve the ventilation, and that will bring in
dust (when I'm climbing my glacier glasses fog badly and I can't get
more ventilation because then the UV gets at the eyes).
I've seen pictures of face shields with an air flow feature that keeps
fresh air around the face. The problem there I suppose is the little
blower you have to carry on your belt and the hose from it to the head.
They seem like a cool idea though.
n
Norman Watts, Ph. D.
National Institutes of Health
50 South Drive, Rm. 1509
Bethesda, MD 20892-8025
Phone: (301) 402-3418
Fax: (301) 480-7629
- References
- message 00589: dust on gilding - VisualThinker7 (18 Aug 2005)
- message 00590: speaking of fogging - gary grossman (18 Aug 2005)
- message 00593: speaking of fogging - william moore (18 Aug 2005)
- message 00594: speaking of fogging - gary grossman (18 Aug 2005)
- Previous by Thread: message 00594: speaking of fogging - gary grossman (18 Aug 2005)
- Next by Thread: message 00596: speaking of fogging - Bill Weissinger (18 Aug 2005)
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