Why pumpkins float
Things float because of buoyancy -- the same reason battleships float. I've
found a Website that may help (I felt guilty for my earlier, smartypants
answer).
Anyway, this site describes an experiment in floating a golf ball. It
probably describes the forces that hold up pumpkins, as well. You might
have to draw some conclusions.
http://www.planetzoom.com/doccroc/w2/b1.htm
I also think the air trapped in the cells and cavity of the pumpkin might
help the pumpkin float -- kinda like the air in our lungs.
Paul Thompson
Armada, Michigan
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