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On 11/3/2010 8:35 PM, John Clement wrote:
A simple gedanken experiment is to eliminate the glue and use somethingwater
different. Put a seal around the edge of the bottom of the box and then
through a small hole in the bottle of the aquarium pump out all of the
and after you have a vacuum close off the hole. There can only beaquarium
compressive forces between the two surfaces. And the bottom of the
will flex less because the pressure on the top of the box is less thanthe
pressure of the water when the box is absent. But that result can alsobe
obtained by using a buoyant pseudoforce.That's the trouble with pretend experiments: if you don't specify all
John M. Clement
Houston, TX
the conditions adequately, they can be controverted. If no water is
lost, the total weight on the base increases. As it applied closer to
the edges, the usual beam theory notes that the greater weight (usually)
provides less deflection. Wrong Conclusion, for your purposes??