Re: What causes a particle in inertial motion to remain in motion?

From	"Checkmate, DoW #1" <Lunatic.Fringe@The.Edge>
Newsgroups	sci.physics, alt.fan.cyberchicken, alt.usenet.kooks, alt.free.newsservers
Subject	Re: What causes a particle in inertial motion to remain in motion?
Date	2016-07-18 20:19 -0700
Organization	Altopia Corp. - Usenet Access - www.altopia.com
Message-ID	<MPG.31f73c069a731afe98daa0@news.altopia.com> (permalink)
References	(2 earlier) <nmh1rb$e19$69@dont-email.me> <9u2oob1tu4kc6q7ijik8v6q5pd9eerdi5k@4ax.com> <nmiaov$102l$1@gioia.aioe.org> <nmjqt2$e19$92@dont-email.me> <67tqob9uai0gvblclgparf7gflos999br5@4ax.com>

Cross-posted to 4 groups.

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In article <67tqob9uai0gvblclgparf7gflos999br5@4ax.com>, 
greghall@yacht_master.fake says...


> 
> On Tue, 19 Jul 2016 00:05:55 -0000 (UTC), Nadegda <nad318b404@gmail.invalid> wrote:
> 
> >On Mon, 18 Jul 2016 06:24:29 -0400, kensi wrote:
> >
> >> On 17/07/2016 6:52 PM, Sir Gregory Hall, Esq. wrote:
> >>> On Sun, 17 Jul 2016 22:46:03 -0000 (UTC), Nadegda
> >>> <nad318b404@gmail.invalid> wrote:
> >>>
> >>>> On Sun, 17 Jul 2016 06:19:56 -0400, kensi wrote:
> >>>>
> >>>>> On 16/07/2016 3:43 AM, hanson, socked up as mapou001@gmail.com,
> >>>>> wrote:
> >>>>>> What causes a particle in inertial motion to remain in motion?
> >>>>>
> >>>>> According to Noether's Theorem (discovered by a personal hero of
> >>>>> mine, BTW), every differentiable symmetry of the action of a
> >>>>> non-dissipative physical system has a corresponding conservation law.
> >>>>> In the case of spatial translation symmetry (i.e. the laws of physics
> >>>>> are the same at every location) the result is conservation of linear
> >>>>> momentum, given that physics as a whole is not dissipative (has
> >>>>> conservation of energy -- which it does, as it has *time* translation
> >>>>> symmetry). So the particle coasts along a timelike geodesic until
> >>>>> given some kind of a nudge and won't ever accelerate on its own. Said
> >>>>> nudge allows it to exchange some linear momentum with some other
> >>>>> particle or particles.
> >>>>>
> >>>>> More at:
> >>>>> https://en.wikipedia.org/wiki/Noether%27s_theorem
> >>>>
> >>>> And kensi solves another one.
> >>>
> >>> No, I'm sorry but kensi seems to be a flatlander.
> >> 
> >> ???
> >> 
> >>> She clearly has no concept that space itself is curved.
> >> 
> >> Oh, really? Then explain my use of the term "timelike geodesic" above.
> >> 
> >>> So there can be NO conservation of linear momentum can exist because
> >>> all momentum necessarily has to be curved in curved space.
> >> 
> >> It's linear momentum when we're considering motion of the object's
> >> center of mass. Even if it is not moving in a straight line. The "line"
> >> in "linear" is then tangential to the object's trajectory, but if that
> >> trajectory is a geodesic, then that geodesic is actually as straight as
> >> the tangent can get anyway.
> >> 
> >> All defined in opposition to *angular* momentum, which involves the
> >> object's motion degrees of freedom that keep the center of mass in
> >> place. In simple cases this would be a rigid rotation of the whole
> >> object, as with a spinning thrown football. But it can be more
> >> complicated, as witness an atom with its many separately moving
> >> electrons.
> >
> >And kensi schools yet another kook.
> >
> ><snicker>
> 
> Kensi did no such thing. I never saw any such reply so I think you
> made it up to try to defend your friend who apparently views space
> as flat. LOL. An astrophysics Ph.D. who is a flat-Earther?  
> 
> And she calls others *kook*?  OMG!
> 
> All Kensi says above about linear motion is STILL taking place in
> a curved space. The only true way to make it linear would be to
> somehow compensate for the curvature of space and redirect the motion
> of the object in a curve that is opposite of the curved space motion.
> Then, a dilemma arises in that the motion is STILL not linear but only
> curved differently than if the object was left alone.
> 
> [afn added]

Can a chord exist within a circle?

-- 

Checkmate, AUK DoW #1, Official Ko0K Wrangler
AUK Hammer of Thor award, Feb. 2012 (Pre-Burnore)
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Copyright © 2016 
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Thread

What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 00:43 -0700
  Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-16 00:57 -0700
    Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 02:20 -0700
      Re: What causes a particle in inertial motion to remain in motion? Wally W. <ww84wa@aim.com> - 2016-07-16 10:22 -0400
        Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 14:24 -0700
          Re: What causes a particle in inertial motion to remain in motion? Wally W. <ww84wa@aim.com> - 2016-07-17 00:47 -0400
            Re: What causes a particle in inertial motion to remain in motion? "hanson" <hanson@quick.net> - 2016-07-16 22:29 -0700
              Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 22:47 -0700
          Re: What causes a particle in inertial motion to remain in motion? Wally W. <ww84wa@aim.com> - 2016-07-17 12:12 -0400
            Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 09:55 -0700
              Re: What causes a particle in inertial motion to remain in motion? Sergio <invalid@invalid.com> - 2016-07-17 16:41 -0500
      Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-17 12:27 -0700
        Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 13:02 -0700
          Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-17 16:05 -0700
            Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 16:28 -0700
              Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-17 19:03 -0700
                Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 19:09 -0700
                Re: What causes a particle in inertial motion to remain in motion? pnalsing@gmail.com - 2016-07-17 20:49 -0700
                Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 22:33 -0700
                Re: What causes a particle in inertial motion to remain in motion? pnalsing@gmail.com - 2016-07-18 18:42 -0700
                Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-18 19:04 -0700
                Re: What causes a particle in inertial motion to remain in motion? pnalsing@gmail.com - 2016-07-18 19:38 -0700
    Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 14:25 -0700
      Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-17 12:31 -0700
        Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 13:06 -0700
          Re: What causes a particle in inertial motion to remain in motion? "nuny@bid.nes" <Alien8752@gmail.com> - 2016-07-17 13:17 -0700
            Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 13:21 -0700
              Re: What causes a particle in inertial motion to remain in motion? Sergio <invalid@invalid.com> - 2016-07-17 16:44 -0500
                Re: What causes a particle in inertial motion to remain in motion? SPQR <SPQR@SPQR.org> - 2016-07-17 16:28 -0600
                Re: What causes a particle in inertial motion to remain in motion? The Starmaker <starmaker@ix.netcom.com> - 2016-07-17 16:59 -0700
                Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 17:24 -0700
  Re: What causes a particle in inertial motion to remain in motion? "Colonel Edmund J. Burke" <burkesgurlz@t-girls.com> - 2016-07-16 06:24 -0700
    Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-16 12:44 -0700
  Re: What causes a particle in inertial motion to remain in motion? Odd Bodkin <bodkinodd@gmail.com> - 2016-07-16 13:00 -0500
  Re: What causes a particle in inertial motion to remain in motion? The Starmaker <starmaker@ix.netcom.com> - 2016-07-16 12:04 -0700
    Re: What causes a particle in inertial motion to remain in motion? The Starmaker <starmaker@ix.netcom.com> - 2016-07-17 14:10 -0700
  Re: What causes a particle in inertial motion to remain in motion? "Y.Porat" <y.y.porat@gmail.com> - 2016-07-16 23:16 -0700
    Re: What causes a particle in inertial motion to remain in motion? "hanson" <hanson@quick.net> - 2016-07-17 10:04 -0700
  Re: What causes a particle in inertial motion to remain in motion? kensi <kkensington01@gmail.invalid> - 2016-07-17 06:19 -0400
    Re: What causes a particle in inertial motion to remain in motion? snipeco.2@gmail.com (Sn!pe) - 2016-07-17 11:33 +0100
    Re: What causes a particle in inertial motion to remain in motion? Nadegda <nad318b404@gmail.invalid> - 2016-07-17 22:46 +0000
      Re: What causes a particle in inertial motion to remain in motion? "Sir Gregory Hall, Esq." <greghall@yacht_master.fake> - 2016-07-17 18:52 -0400
        Re: What causes a particle in inertial motion to remain in motion? kensi <kkensington01@gmail.invalid> - 2016-07-18 06:24 -0400
          Re: What causes a particle in inertial motion to remain in motion? Nadegda <nad318b404@gmail.invalid> - 2016-07-19 00:05 +0000
            Re: What causes a particle in inertial motion to remain in motion? "Sir Gregory Hall, Esq." <greghall@yacht_master.fake> - 2016-07-18 20:39 -0400
              Re: What causes a particle in inertial motion to remain in motion? "Checkmate, DoW #1" <Lunatic.Fringe@The.Edge> - 2016-07-18 20:19 -0700
              Re: What causes a particle in inertial motion to remain in motion? kensi <kkensington01@gmail.invalid> - 2016-07-19 06:19 -0400
                Re: What causes a particle in inertial motion to remain in motion? Nadegda <nad318b404@gmail.invalid> - 2016-07-19 23:07 +0000
          a particle in noTthaTguY <abu.kuanysh05@gmail.com> - 2016-07-18 18:44 -0700
      Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 15:55 -0700
        Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 15:59 -0700
  Re: What causes a particle in inertial motion to remain in motion? Sergio <invalid@invalid.com> - 2016-07-17 12:29 -0500
    Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 11:24 -0700
    Re: What causes a particle in inertial motion to remain in motion? xxein1@att.net - 2016-07-17 12:07 -0700
  Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-17 13:26 -0700
  Re: What causes a particle in inertial motion to remain in motion? yanarchi@hotmail.com - 2016-07-18 21:58 -0700
    Re: What causes a particle in inertial motion to remain in motion? mapou001@gmail.com - 2016-07-18 22:03 -0700
  Re: What causes a particle in inertial motion to remain in motion? "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-07-19 09:25 -0700

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