Re: [Paddlewise] compass and red light

From: Joe Pylka <pylka_at_castle.net>
Date: Fri, 5 Mar 1999 01:09:33 -0500
>>I've heard it said lately that the color of the light is not so
>>important as its intensity -- that a dim white light will not harm
>>night vision more than a dim red light. I have also seen references
>>to the military using green lighting to protect night vision.
>I've also heard it said that the red light theory was a hoax developed by
>the Brits to annoy/distract the enemy during WWII and that there is no
>basis for red being any better than any other colour of the same intensity.
>

        --A little off topic but some years ago the Bronx Zoo was developing
their small mammal and Night exhibit.  At first they tried red light in the
corridors for us humans.  They discovered that a huge percentage of people
had real trouble orienting in those conditions and kept bumping into
things....   So the last time I was there, it was basically total darkness
plus some dim white light.


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Received on Thu Mar 04 1999 - 22:07:54 PST

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