From: "Bill Wallace" <bwallace at mitra_com>
Reply-To: killietalk at AKA_Org
To: <killietalk at AKA_Org>
Subject: RE: Hatching Nothobranchius and etc.
Date: Wed, 23 Apr 2003 15:44:48 -0400
Sorry to disappoint you, but water IS compressible, even in liquid and
solid states. It doesn't compress very much as a liquid, but it would
violate things such as the speed of light limits if it didn't compress.
Otherwise, to transmit information faster than light, just form a tube of
frozen water, say 1 km long, and fill it with liquid water and produce
sound vibrations at one end. If no compression were possible in water,
then the vibrations would have to be transmitted instantly to the other end
(this is true because if no compression is possible, then the water volume
is precisely constant, and so any decrease in volume at one location must
be precisely matched by an increase at another location.) Then, just make
the only possible locations that volume can be changed be distant, and
voila, you have FTL transmission of information. It actually implies that
the H2O molecules move faster than light as well.
Also, just generally think about transmitting sound. Sound is a
compression wave, so if water doesn't compress, then it doesn't transmit
sound either. But we all know it DOES transmit sound, so it must also
compress.
The compression of water does affect things like solubility of various
compounds in it. That is why putting eggs at various depths can affect
their hatching process.
Any decent chemical reference manual should have a graph of temperature,
pressure and density of water. Note that the graphs for water have some
hiccups in them (which is why ice floats instead of sinking), so you need
actual references rather than theoretical models.
Bill
-----Original Message-----
From: Rjga at aol_com [mailto:Rjga at aol_com]
Sent: April 23, 2003 3:03 PM
To: killietalk at AKA_Org
Subject: Re: Hatching Nothobranchius and etc.
>
I'm not sure where this leads, but divers know that water is not
compressible, so while the atmosphere in the vial might be compressed, the
water surrounding the eggs will not be.
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