Subject:
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Compressible fluids
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Aug 1999 15:52:36 GMT
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Original-From:
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John A. deVries II <zozzles@lanl&AvoidSpam&.gov>
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Viewed:
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1212 times
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At 01:34 AM 08/09/1999 , Kevin Baker wrote:
> > In lugnet.robotics, Dennis Clark writes:
> > incorrect my friend. if water was not compressable at all there would be no
> > pressure difference from the top to the bottom.
Um, I'm sorry, I honestly didn't want to keep this discussion alive in ANY
form but this is silly.
The pressure difference from top to bottom results from the weight of the
water on top. Period. If I put a 6 ton weight (shades of Monty Python!)
on you and its entire surface area covers you, you find yourself pressed
with 6 tons (per whatever area that results). If I then balance another 6
ton weight on top of that (and say that the area doesn't change), the you
find yourself pressed with 12 tons.
Compressibility, as such, has nothing to do with the matter. The taller
the column of water above you, the greater its volume, the more its mass,
and therefore the greater the pressure for a given square area. This would
be true whether the liquid compressed or not because compression wouldn't
change the mass even if it did change the volume.
My 0.02 EuroDollars,
ZtF
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 2 Replies:
 | | Re: Compressible fluids
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| I think all of you meant with this discussion is that water don't get substantially denser (thick) from the surface to the bottom, right? (...) [ mailto:lau@mail.telepac.pt ] [ (URL) ] -- Did you check the web site first?: (URL) (25 years ago, 9-Aug-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Darn those definitions (was: The new Super Car)
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| (...) incorrect my friend. if water was not compressable at all there would be no pressure difference from the top to the bottom. Admittedly it is not very easy to do it, but it will compress. Most solids are compressable too. At hight pressures, (...) (25 years ago, 8-Aug-99, to lugnet.robotics)
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