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Post by marchesarosa on Oct 1, 2012 19:03:29 GMT 1
Thanks for the reply but it's way above my head. I'll get off back down the road with mercury.
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Post by Progenitor A on Oct 1, 2012 19:48:43 GMT 1
Thanks for the reply but it's way above my head. I'll get off back down the road with mercury. Me too. I am here under false pretences |
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Post by buckleymanor1 on Oct 2, 2012 0:42:01 GMT 1
It would be crushed and burst before it got to the ocean floor.
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Post by fascinating on Oct 2, 2012 7:41:05 GMT 1
This is a balloon made of a new super-strength material that won't burst.
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Post by jonjel on Oct 2, 2012 9:23:18 GMT 1
Well, if you take a body that is slighly less dense than sea water. i.e. an actual body once it reaches a certain depth it will sink forever, at increasing speed.
Free divers have to swim to a depth before they are effectively in free fall, then need to swim up by using their tail fin to reach the surface.
Not many people know that......
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Post by Progenitor A on Oct 2, 2012 9:43:48 GMT 1
Well, if you take a body that is slighly less dense than sea water. i.e. an actual body once it reaches a certain depth it will sink forever, at increasing speed. Free divers have to swim to a depth before they are effectively in free fall, then need to swim up by using their tail fin to reach the surface. Not many people know that...... Well Jonjel I certainly did not know that! Why does it apply only to bodies that are slightly less dense than water? Could it be because as the slightly less dense body, as it goes down becomes compressed and hence its density approaches that of water until a point is reached wher the comression causes a density greater than that of water then down you go? |
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Post by jonjel on Oct 2, 2012 9:51:09 GMT 1
Yes. And it would apply to all bodies which are less dense than water, but are compressible. However the depths for some could start to get a little silly.
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Post by buckleymanor1 on Oct 2, 2012 21:25:21 GMT 1
Yes. And it would apply to all bodies which are less dense than water, but are compressible. However the depths for some could start to get a little silly. For some others it could be less. en.wikipedia.org/wiki/Cartesian_diver A Cartesian diver puts the theory into practice. Hope the link works. |
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Post by jonjel on Oct 3, 2012 12:51:43 GMT 1
Sorry Bm, but the link does not seem to open.
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