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	As part of Marvelous Molecules we, the New York Hall of 
Science, have had a Flir Infra Red Camera for almost 10 years 
(actually we are on our second camera) with minor difficulties. The 
back wall has HEAT written with very small light bulbs within the 
wall (backwards so it reads correctly on the tv monitor). Hand prints 
on the wall are easily detected by the camera.  One aspect of the 
exhibit that had to be unfortunately abandoned were color prints that 
visitors purchased for $.50. It was popular to purchase a souvenir 
infra red print. at the exhibition. Our exhibition shop was not 
overly saddened by the departure of the printer and the change 
apparatus. The exhibit text relates the infra red image of the 
visitors body to molecular metabolic activity. Well, not exactly all 
of those words.

Cheers,

Martin

Martin Weiss, PhD
Science Interpretation
Consultant,
New York Hall of Science







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