Re: 'Dark Matter'

From	moroney@world.std.spaamtrap.com (Michael Moroney)
Newsgroups	sci.physics
Subject	Re: 'Dark Matter'
Date	2015-08-10 23:40 +0000
Organization	The World : www.TheWorld.com : Since 1989
Message-ID	<mqbcpq$bvc$5@pcls7.std.com> (permalink)
References	(6 earlier) <6afb63b8-f5b8-455e-bd45-0b8f719c0d20@googlegroups.com> <mp8jdj$6uq$1@speranza.aioe.org> <1457970.BsSg34WjJe@PointedEars.de> <mqb52r$aen$1@pcls7.std.com> <7461341.L6YsdKe0aM@PointedEars.de>

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Thomas 'PointedEars' Lahn <PointedEars@web.de> writes:

>Michael Moroney wrote:

>> Since the sun is spherically symmetric with photons going in all
>> direction, it all pretty much adds up to zero, and the sun doesn't move.

>The Sun is not a solid body.  Since the two of you are arguing based on 
>Newtonian mechanics (which is interesting to say the least, given the nature 
>of the photon), if the Sun recoiled in all directions simultaneously, it 
>would have to shrink.  However, no shrinking of the Sun due to recoiling 
>from photon emissions has been reported to date.

Newtonian mechanics works well enough for the emitting plasma particle's
behavior, or the sun as a whole.  The (slight) force trying to shrink the
sun is counterbalanced by its heat trying to expand the plasma and it's in
steady state.

You are probably right that it's best to consider just the emitting plasma
particle rather than the sun as a whole since it's not solid, but it's 
still true that the net reaction of the whole sun recoiling is still
accurate (as Newtonian mechanics demands) even if the recoil of the sun
as a whole is just a very slight shift caused by the motion of one of its
components.

>Or, because the Sun is basically *a ball of hot plasma*, it does not recoil 
>at all, in any direction, but rotates slower and cools down instead as it 
>loses momentum by emission of electromagnetic radiation.

If you add the sum total of the motion of all the zillions of 
ions/electrons that compose the sun before and after there will be a
very slight net shift.  Momentum is conserved.

The energy of the photon, of course, does cool the sun slightly.

Thread

'Dark Matter' john <johnsefton288@gmail.com> - 2015-07-27 07:28 -0700
  'Dark Matter' john <johnsefton288@gmail.com> - 2015-07-27 18:16 -0700
    Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-07-28 07:17 -0400
    Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-07-28 15:18 -0700
      Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-07-29 02:22 +0000
    Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-10 21:18 +0200
      Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-10 13:51 -0700
        Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-10 15:58 -0500
          Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-11 01:04 +0200
            Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-11 07:49 -0500
              Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 06:26 -0700
                Re: 'Dark Matter' Sam Wormley <swormley1@gmail.com> - 2015-08-11 08:31 -0500
                Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-11 09:41 -0400
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 06:51 -0700
                Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-11 13:44 -0400
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 11:00 -0700
                Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-11 18:44 +0000
                Re: 'Dark Matter' Sam Wormley <swormley1@gmail.com> - 2015-08-11 08:51 -0500
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 07:17 -0700
                Re: 'Dark Matter' Sam Wormley <swormley1@gmail.com> - 2015-08-11 10:45 -0500
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 09:50 -0700
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-11 10:01 -0700
                Re: 'Dark Matter' Mahipal <mahipal7638@gmail.com> - 2015-08-11 08:10 -0700
              Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 13:44 +0200
                Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 07:51 -0500
      Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-10 21:28 +0000
        Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-10 14:35 -0700
          Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-10 23:31 +0000
            Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 15:22 +0200
              Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 14:43 +0000
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 19:39 +0200
                Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 18:06 +0000
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 20:23 +0200
                Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 19:37 +0000
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 00:39 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 15:38 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:25 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 17:15 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 17:31 +0200
                Re: 'Dark Matter' R Kym Horsell <kym@kymhorsell.com> - 2015-08-16 16:09 +0000
                Re: 'Dark Matter' [OT] Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 18:47 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 10:38 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 11:09 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 12:40 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:17 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:46 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 10:42 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 11:21 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 12:58 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:19 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:49 +0200
                light is magneto-electrical noTthaTguY <abu.kuanysh05@gmail.com> - 2015-08-13 19:10 -0700
                Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 13:49 -0500
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 20:50 +0200
                Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 14:03 -0500
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 00:43 +0200
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-15 17:53 -0700
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 09:34 +0200
                Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-16 08:05 -0400
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 11:36 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:00 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:22 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:30 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:56 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 11:17 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 11:26 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 13:01 +0200
              Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 10:14 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 10:43 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 13:07 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:21 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 17:07 +0200
        Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-11 01:03 +0200
          Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-10 23:40 +0000
            Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 13:41 +0200
              Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 14:54 +0000
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-13 08:13 -0700
                Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 10:46 -0500
                Re: 'Dark Matter' noTthaTguY <abu.kuanysh05@gmail.com> - 2015-08-13 09:48 -0700
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-13 10:00 -0700
                Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 13:45 -0500
                Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 16:01 +0000
                Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-14 07:07 -0400
                Re: 'Dark Matter' noTthaTguY <abu.kuanysh05@gmail.com> - 2015-08-14 10:39 -0700
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 20:29 +0200
                Re: 'Dark Matter' moroney@world.std.spaamtrap.com (Michael Moroney) - 2015-08-13 19:14 +0000
                Re: 'Dark Matter' Felipe Delgado <fd@spreadspectrum.org> - 2015-08-13 19:28 +0000
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-15 15:38 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 12:23 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:04 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:32 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 16:33 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 17:02 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 19:24 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 20:31 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 22:16 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 22:38 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 20:45 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 22:32 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 22:57 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 23:22 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 23:34 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 23:38 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-18 07:43 +0200
                Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-18 08:07 -0700
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 21:40 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 22:35 +0200
                Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-16 23:36 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 23:50 +0200
                Re: 'Dark Matter' Poutnik <poutnik4nntp@gmail.com> - 2015-08-17 07:56 +0200
          Re: 'Dark Matter' Odd Bodkin <bodkinodd@gmail.com> - 2015-08-11 07:48 -0500
            Re: 'Dark Matter' Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-08-13 13:41 +0200
  Re: 'Dark Matter' "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-07-29 13:27 -0700
  Re: 'Dark Matter' "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-08-16 14:42 -0700
  Re: 'Dark Matter' "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-08-18 14:01 -0700
    Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-18 20:21 -0700
    Re: 'Dark Matter' benj <nobody@gmail.com> - 2015-08-19 01:26 -0400
      Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-19 06:07 -0400
        Re: 'Dark Matter' Sam Wormley <swormley1@gmail.com> - 2015-08-19 08:05 -0500
        Re: 'Dark Matter' john <johnsefton288@gmail.com> - 2015-08-19 07:04 -0700
          Re: 'Dark Matter' HVAC <Mr.HVAC@gmail.com> - 2015-08-19 19:14 -0400
  Re: 'Dark Matter' "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-08-19 09:12 -0700

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