Re: does a siphon work in vacuum?

[Chuck Britton <britton@NCSSM.EDU>]

At 1:03 PM -0800 3/14/04, John Denker wrote:
> Quoting Robert Cohen <Robert.Cohen@PO-BOX.ESU.EDU>:
> ...
>  > Could you define "negative pressure"?
>
> Well, that sort of "grabbing" is exactly the topic of discussion.
> I believe it is possible.  Tricky, but possible.

People who study fluid transport in tall trees refer to the negative
pressure that exists in the upper capillaries.

BTW - I'd be tempted to say that a liquid cannot exist (in
equilibrium) in a vacuum.

It is always either totally enclosed or in contact with it's own
vapor (at the vapor pressure of the liquid)


--
Chuck Britton                                   Education is what is left when
britton@ncssm.edu                       you have forgotten everything
North Carolina School of Science & Math         you learned in school.
(919) 416-2762                                  Albert Einstein,        1936