On 24 Jul 00, Greg Conquest <[EMAIL PROTECTED]> wrote:
> A general note, some flashlights sold for military and camping use come
> with a red filter (often stored in the base.) These lights are designed
> to read maps without giving away positions to the enemy (or to
> bears???), so this might work well also.
Astronomers use them too. The red filter is used because it doesn't
cause your pupils to adjust to a different level of light, so you aren't
blinded for a few moments when you turn the flashlight off.
--
# Erik Arneson <[EMAIL PROTECTED]> EA, Ashland Lodge #23, GL Oregon #
# GPG Key ID: 1024D/43AD6AB8 <URL:http://www.aarg.net/erik/> #
# "The worst wheel of a cart makes the most noise." -- Ben Franklin #
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