Re: Endless Oil?

From: Dan Bloomquist (EXTRApublic21_at_lakeweb.com)
Date: 09/29/04

  • Next message: Don Kelly: "Re: Why has no perpetual motion machine been invented?" 
    Date: Wed, 29 Sep 2004 03:02:42 GMT

    charliew2 wrote:
    > Dan Bloomquist wrote:
    >
    >>charliew2 wrote:
    >>
    >>>Dan Bloomquist <EXTRApublic21@lakeweb.com> wrote in message
    >>>news:4159C1A8.5070002@lakeweb.com...
    >>>
    >>>>The mixing is not 'just' from turbulence. The average velocity of
    >>>>molecules in the air is some third of a mile a second.
    >>>
    >>>But ... escape velocity is 7 miles per second, so gravity is strong
    >>>enough to capture earth's atmosphere and maintain it. Gravity is
    >>>also strong enough to allow you to measure the weight of the
    >>>atmosphere (e.g., 14.7 lb/in^2 at sea level, which is quite
    >>>substantial)
    >>>
    >>>The point? Without constant mixing and turbulence, it is likely that
    >>>something as dense as Freon 12 would tend to sink towards the
    >>>ground. In fact, this sounds like something open to
    >>>experimentation. A still room containing air with 10% Freon 12 in
    >>>it (well mixed) should show some "unmixing" over time. Has this
    >>>experiment been performed anywhere?
    >>
    >>This was worked out back when Maxwell was alive. See 'the kinetic
    >>theory of gases'. You can set a container with freon and hydrogen
    >>aside for years. When you come back, the gases will still be
    >>perfectly mixed.
    >>
    >>Best, Dan.
    >
    >
    > So, how "heavy" must a gas be to "settle out" of a well mixed solution of
    > two gases?

    Hi Charlie,
    Even with radon and hydrogen. And because the velocity of the molecules
    will so overwhelm gravity.

    Consider just one molecule in the container. As a gas, this molecule is
    subject to thermal velocity. So you will be just as likely to find it in
    the top of the container as the bottom. Adding and mixing molecules
    doesn't change this.

    Best, Dan. 

    -- 
http://lakeweb.net
http://ReserveAnalyst.com
No EXTRA stuff for email.
  • Next message: Don Kelly: "Re: Why has no perpetual motion machine been invented?"

    Relevant Pages

    • Re: Endless Oil?
      ... the gases will still be ... >>Best, Dan. ... And because the velocity of the molecules ... Consider just one molecule in the container. ...
      (sci.energy.hydrogen)
    • Re: "Keyset does not exist" after change password
      ... Dan ... This is most likely related to DPAPI not being able to decrypt the container ... Please lookup the following KB articles ... CryptAcquireContext to open my keyset. ...
      (microsoft.public.platformsdk.security)
    • RE: Sorted List
      ... Dan wrote: ... > it is an unordered collection. ... > I needed a container more like a list, ... Python Cookbook: http://aspn.activestate.com/ASPN/Cookbook/Python/ ...
      (comp.lang.python)
    • Re: Displaying file full path Anyone?
      ... >> depends on how you put the file into the container - try it out. ... >> savvas wrote: ... >> FMP7.03, WinXP SP2 ... Dan ...
      (comp.databases.filemaker)