Re: Precession

From	moroney@world.std.spaamtrap.com (Michael Moroney)
Newsgroups	sci.physics
Subject	Re: Precession
Date	2017-04-07 18:04 +0000
Organization	The World : www.TheWorld.com : Since 1989
Message-ID	<oc8kb5$2cr$2@pcls7.std.com> (permalink)
References	(12 earlier) <fa743772-d89c-4947-aad9-3f97ffe3399d@googlegroups.com> <oc62cc$1l94$1@gioia.aioe.org> <719a64ff-a463-4589-8b58-1429c46e1fd7@googlegroups.com> <oc72cj$soh$2@pcls7.std.com> <16b7ddd4-8481-4e33-8aae-a56620e9fb13@googlegroups.com>

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john <johnsefton288@gmail.com> writes:

>MM
>"
>>Why, according to your understanding of science, 
>>does this happen? 

>Conservation of angular momentum. "

>Why is it conserved?
>What physically happens?

It can be derived from the fact that linear momentum is conserved,
but that has a bunch of math that I doubt that you care about.

It can also be derived by the laws of physics being the same
everywhere, specifically the fact that the laws of physics are
the same no matter which way you are facing (rotational symmetry).
Again, more messy math, read Noether's Theorem if you are interested
in such stuff.

Thread

Precession john <johnsefton288@gmail.com> - 2017-04-04 07:01 -0700
  Re: Precession Serg io <invalid@invalid.com> - 2017-04-04 10:07 -0500
    Re: Precession noTthaTguY <abu.kuanysh05@gmail.com> - 2017-04-04 08:45 -0700
  Re: Precession moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-04-04 15:27 +0000
  Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-04 10:49 -0500
    Re: Precession john <johnsefton288@gmail.com> - 2017-04-04 10:41 -0700
      Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-04 12:45 -0500
        Re: Precession Serg io <invalid@invalid.com> - 2017-04-04 14:32 -0500
        Re: Precession john <johnsefton288@gmail.com> - 2017-04-05 07:59 -0700
          Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-05 10:30 -0500
            Re: Precession john <johnsefton288@gmail.com> - 2017-04-05 10:10 -0700
              Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-05 12:23 -0500
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-05 16:36 -0700
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-06 07:02 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-06 09:19 -0500
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-06 09:18 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-06 11:36 -0500
                Re: Precession "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-04-06 10:26 -0700
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-06 11:17 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-06 13:45 -0500
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-06 12:07 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-06 14:31 -0500
                Re: Precession pnalsing@gmail.com - 2017-04-06 15:06 -0700
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-06 12:32 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-06 14:46 -0500
                Re: Precession benj <nobody@gmail.com> - 2017-04-06 20:23 -0400
                Re: Precession moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-04-07 03:51 +0000
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-07 06:40 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-07 08:53 -0500
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-07 07:38 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-07 09:58 -0500
                Re: Precession john <johnsefton288@gmail.com> - 2017-04-07 07:58 -0700
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-07 10:00 -0500
                Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-07 10:02 -0500
                Re: Precession moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-04-07 15:32 +0000
                Re: Precession moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-04-07 18:04 +0000
                Re: Precession benj <nobody@gmail.com> - 2017-04-06 20:22 -0400
                Re: Precession moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-04-07 03:50 +0000
                Re: Precession noTthaTguY <abu.kuanysh05@gmail.com> - 2017-04-07 19:41 -0700
                Re: Precession noTthaTguY <abu.kuanysh05@gmail.com> - 2017-04-07 20:21 -0700
  Re: Precession Edward Prochak <edprochak@gmail.com> - 2017-04-04 11:38 -0700
  Re: Precession "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-04-06 10:25 -0700
  Re: Precession Odd Bodkin <bodkinodd@gmail.com> - 2017-04-07 14:32 -0500

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