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cooling water



See the physics FAQ. For example question 14 in:

http://www.lib.ox.ac.uk/internet/news/faq/archive/physics-faq.part3.html

The point is that more water can evaporate from the hot container under the
right conditions, thus carrying off not just mass but the hottest
molecules. A similar trick is used in some forms of atomic cooling where
only the fastest molecules can escape from a magnetic trap. Carl

------------------------------------------------------------------------
Dr. Carl Mungan, Assistant Professor http://www.uwf.edu/~cmungan/
Dept. of Physics, University of West Florida, Pensacola, FL 32514-5751
office: 850-474-2645 (secretary -2267, FAX -3161) email: cmungan@uwf.edu