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View Diary: Taking a stroll down Entropy Lane (32 comments)

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  •  well I'm actually more interested (0+ / 0-)

    in the organizing principle, of tapping "free" excess energy,

    than the final heat "balance sheet" at the end of the universe.  (which will be around 0.00000000000001 degrees Kelvin.)

    For now anyways, the Sun will be not running out of heat, anytime soon.  

    At least, on the time-scales that matter to the current challenges, facing us humans.

    I would grant that I may be "stretching" the technical definition of Entropy.

    But there are more "common sense" definitions of the term,
    as I referenced in my post:

    2 b: a process of degradation or running down or a trend to disorder

    That is the concept, upon which the discussion with my brother, was posed.

    Isn't it time to fix the Filibuster?
    -- Here's how.

    by jamess on Sun Dec 09, 2012 at 02:17:23 PM PST

    [ Parent ]

    •  A Trend To Disorder (1+ / 0-)
      Recommended by:

      Really kind of encompasses the thermodynamic definition as well.

      You can't extract energy from a disordered system as, ultimately, disorder resembles the ultimate order.  Everything's pretty much the same, and there's no differential to exploit.

      Similarly, the Sun's entropy--disorder--is increasing far more rapidly than it would have if the proto-solar cloud had never contracted.  Those nice photons the Sun shoots out are further away every second, and there are more of them.  It's really a very disorderly system at the end of it, with part of the Solar mass spread through the Universe as photons and the rest in a homogenous lump of carbon cooling down.

      Give it enough time and, one way or another (theories differ but all end up at the same place), even that final mass dissolves into a thin soup of photons and the rare particle/antiparticle pair.

      It doesn't get much more disorderly than that.

      (-6.25, -6.77) Moderate left, moderate libertarian

      by Lonely Liberal in PA on Sun Dec 09, 2012 at 06:48:00 PM PST

      [ Parent ]

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