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Re: brightness vrs. power



This may be true, but I saw a demonstration about three summers ago in
which the instructor broke the glass on a household bulb and immersed the
filament in a bath of water with an electric stirrer to keep the
temperature as uniform as possible. He varied voltage and measured
current -- I have to say the relationship looked awfully linear to me.

David

But, as I recall, the whole discussion was about light bulbs, not tungsten
in a constant temperature bath.





Clarence Bennett
Oakland University
Rochester, Michigan 48309
248 370 3418
http://www.acs.oakland.edu/physics/staff_info/Bennett.htm