In a message dated 7/25/2004 8:56:06 PM Eastern Daylight Time,
writes:

So far, we are using my
wife's magnifying glass which has light bulb on it and can be bend to
almost any position

This probably generates too much heat if placed close enough to be
effective. I don't remember the exact formula but light intensity falls off by
the square of the distance? A light at 2 inches might have an intensity of x,
but at 4 inches it isn't 1/2x but 1/4x and so on.

Billy on the Florida Space Coast
BSF Annual Convention July 1 - 4, 2005 Radisson Hotel, Cape Canaveral,
Florida
Workshops with Jerry Meislik of Whitefish, Montana, Chase Rosade of New Hope,
PA, and Ben Oki of California.

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