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- Path: sparky!uunet!caen!zaphod.mps.ohio-state.edu!pitt.edu!gswst
- From: gswst@cislabs.pitt.edu (Gary S. Wachs)
- Newsgroups: sci.physics
- Subject: pressure questions
- Message-ID: <9729@blue.cis.pitt.edu.UUCP>
- Date: 16 Nov 92 18:45:52 GMT
- Sender: news+@pitt.edu
- Organization: University of Pittsburgh, Electrical Engineering
- Lines: 22
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- This past week I took SCUBA lessons (Openwater, PDIC) and talked about
- the effects of pressure quite a bit. As we descend into the water,
- the ambient pressure increases, compressing us. The degree to which
- something is compressed depends on whether is is a solid, liquid or gas.
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- Therefore, if we took an extremely thick-walled metallic box with a
- hollow center filled with a cubic foot of air at sea-level pressure of
- 1 atmosphere, I believe that the metal would be so resistent to
- compression that the hollow air pocket inside would not see a change in
- pressure. Yes it is changing altitude, but it is isolated from the
- crushing forces of pressure outside the box, it won't be effected.
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- Now then, am I way off or is that correct?
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- Thanks in advance...
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