You might want to check out this theory and experiment, though I don't
think much of it since 'heat rises';
Theory;
http://ww4.choice.net/~pbfred/
Experiment;
http://ww4.choice.net/~pbfred/AlumApril211999.htm
In one experiment the inside of a hollow aluminum half sphere was
illuminated for 250 seconds with 3500 watts of infrared light. The
observed loss of weight averaged ~3.7 %. Because the experiments related
to the theory are simple and inexpensive, they can be carried out by the
novice as well as the professional..
-- Jerry Wayne Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187