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The interesting thing I observed from an airliner was that a large pool of
fog was *pouring* from a valley through a gap between two hills and
spreading over a large flat landscape like a liquid. The observable
structure of the flow, the little bits of turbulence, etc., looked
*exactly* like we see when white misty CO2 is poured across a table. The
upper surface of the fog displayed slow moving gravity waves, just like a
pool of CO2 fog does. Fluid dynamics is neat! Huge flow structures miles
across can be totally identical to tiny ones on a tabletop.
.....................uuuu / oo \ uuuu........,.............................
William Beaty voice:206-781-3320 bbs:206-789-0775 cserv:71241,3623
EE/Programmer/Science exhibit designer http://www.eskimo.com/~billb/
Seattle, WA 98117 billb@eskimo.com SCIENCE HOBBYIST web page