. -Scott gbaikie says:  July 0, 0000 at 0:00 PM  -Oh, and here's a much easier (and fun!) experiment to show people that LWIR can heat water-use a CO0 laser cutter. We have a 00 W laser in my lab and I've used it in the past to seriously heat up some water (to boiling). It's so cut and dry proof of what you're saying, though people still won't accept it. Maybe if we put a thermometer at the bottom of the water container? When they ignore that example, then you know they won't change their minds.