Down-striking discovery and up-striking pianist

[Elian Degen J.]

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Jim:

What keeps water liquid is the high pressure that there is over it.=20
Next I send you an article from Encarta 99 I should know. Caracas were I =
live is 2700 ft. above sea level and I like cooking=20


Boiling Point, temperature at which the vapor pressure of a liquid =
slightly exceeds the pressure of the atmosphere above the liquid. At =
temperatures below the boiling point (b.p.), evaporation takes place =
only from the surface of the liquid; during boiling, vapor forms within =
the body of the liquid; and as the vapor bubbles rise through the =
liquid, they cause the turbulence and seething associated with boiling. =
If the liquid is a single substance or an azeotropic solution (a mixture =
that has a constant b.p.), it will continue to boil as heat is added =
without any rise in temperature; that is, boiling occurs at constant =
temperature regardless of the amount of heat applied to the liquid.
When the pressure on a liquid is increased, the b.p. goes up. Water at 1 =
atmosphere pressure (760 torr, or about 14.7 lb/sq in) boils at 100=B0 C =
(212=B0 F), but when the pressure is 218 atmospheres (165,000 torr, or =
3200 lb/sq in), the b.p. reaches its maximum, 374=B0 C (705=B0 F). Above =
this temperature (the critical temperature of water), liquid water is =
identical to saturated steam. See Pressure.
If the pressure on a liquid is reduced, the b.p. is lowered. At higher =
elevations, where air pressure is less, water boils below 100=B0 C. In =
Denver, Colorado, which is 1.6 km (1 mi) above sea level, the b.p. of =
water averages 94=B0 C (201=B0 F). When the pressure on a sample of =
water falls to 4.55 torr (0.088 lb/sq in), boiling occurs at 0=B0 C =
(32=B0 F), which is the normal freezing point.
Boiling points cover a wide temperature range. The lowest b.p. is that =
of helium, -268.9=B0 C (-452=B0 F). The highest is probably that of =
tungsten, about 5900=B0 C (10,650=B0 F). The boiling points given in the =
separate articles on the various elements and compounds apply at normal =
pressure unless specifically stated otherwise.



"Boiling Point," Microsoft=AE Encarta=AE Encyclopedia 99. =A9 1993-1998 =
Microsoft Corporation. All rights reserved.
----- Original Message -----=20
From: <JIMRPT@AOL.COM>
To: <pianotech@ptg.org>
Sent: Thursday, September 30, 1999 4:37 PM
Subject: Re: Down-striking discovery and up-striking pianist


>=20
> In a message dated 9/30/1999 4:00:01 PM, degen@telcel.net.ve writes:
>=20
> <<  lack of
> atmospheric pressure would lower water boiling point so much that at =
normal
> ambient temperature it would completely evaporate, >>
>=20
> Elian;
>  Lowering the pressure 'raises' the boiling point of water not lower=20
> it.........ever try to cook a pot of rice at 9,000 feet? :-) While I =
am sure=20
> that the lack of any discernible atmospheric pressure would have =
deletrious=20
> effects on the thingee I don't know what those effects would be, but =
your=20
> scenario is as reasonable as anything I could come up with.
>  As for the "pianists in space" I have at least two that I would like =
to send=20
> along with your choices :-)
> Jim Bryant (FL)
>=20

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