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Groups > sci.physics.relativity > #407314

Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT?

Message-ID <58903FE0.1FC0@ix.netcom.com> (permalink)
Date 2017-01-30 23:42 -0800
From The Starmaker <starmaker@ix.netcom.com>
Newsgroups sci.physics.relativity
Subject Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT?
References (4 earlier) <588DABB2.7B39@ix.netcom.com> <588E47FF.F26@ix.netcom.com> <588E55C3.2B28@ix.netcom.com> <588E6E82.2D31@ix.netcom.com> <588E9F1C.527A@ix.netcom.com>

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The Starmaker wrote:
> 
> The Starmaker wrote:
> >
> > The Starmaker wrote:
> > >
> > > The Starmaker wrote:
> > > >
> > > > The Starmaker wrote:
> > > > >
> > > > > Sylvia Else wrote:
> > > > > >
> > > > > > On 29/01/2017 1:21 PM, The Starmaker wrote:
> > > > > > > Sylvia Else wrote:
> > > > > > >>
> > > > > > >> On 28/01/2017 6:58 AM, HGW, DSc. wrote:
> > > > > > >>> To a person on the ground, an object falling to Earth is accelerating,
> > > > > > >>> as in dv/dt (ignore air). It also appears to be accelerating relative to
> > > > > > >>> Earth when viewed from the moon. ...yet it has been claimed here that
> > > > > > >>> the state of free fall is inertial.
> > > > > > >>> Note, all massive objects in the universe are freely 'falling' so can
> > > > > > >>> their 'reference frames' be regarded as inertial?
> > > > > > >>
> > > > > > >> A person on the ground is not inertial, so the requirement that the laws
> > > > > > >> of physics by the same for all inertial observers does not apply to the
> > > > > > >> person on the ground. An inertial body accelerates in the frame of a
> > > > > > >> non-inertial observer.
> > > > > > >>
> > > > > > >> As for massive bodies being inertial, the problem is that, in common
> > > > > > >> with all observers, the volume of space regarded as being inertial for
> > > > > > >> the observer is that volume where the gravitational field doesn't vary
> > > > > > >> significantly in either intensity or direction. A massive body itself
> > > > > > >> creates a field that varies in intensity and direction, so the volume of
> > > > > > >> space regarded as inertial is much smaller than the body.
> > > > > > >>
> > > > > > >> Sylvia.
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > the person on the ground is falling..
> > > > > > >
> > > > > > >
> > > > > > > people fall in holes...
> > > > > >
> > > > > > While person is falling into a hole, and not touching anything, they're
> > > > > > inertial (ignoring air resistance). Before they started to fall, they
> > > > > > were not inertial. When they reach the bottom of the hole, they're again
> > > > > > not inertial.
> > > > > >
> > > > > > Sylvia.
> > > > >
> > > > > (i was thinking of a bottom less hole)
> > > > >
> > > > > i'm a little confused, the earth is faling with the person at the same
> > > > > time...
> > > > > if they are both falling at the sametime...where is the resistance?
> > > >
> > > > birds don't fly, they fall...but they create a resistance with their
> > > > wings.
> > > >
> > > > i'm not creating any resistance.
> > >
> > > a baby doesn't learn how to walk...it learns how not to fall, this way
> > > or that way.
> >
> > but if you understand the nature of things, you pick up a stone...let it
> > go, it falls down.
> >
> > it doesn't fall up.
> >
> > or this way or that way...just down.
> 
> let me get this straight..
> 
> if i drop two stones
> they both fall down
> at the same time..
> 
> what difference does it
> make if one stone is
> 
> walking on the other stone?


Now, some of yous might be under the impression that
what holds the earth also drops the earth..
or
the force that keeps the earth from falling is the same force that makes
things ....fall.


i don't buy it.

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Thread

Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-28 06:58 +1100
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Juliana Auerbach <jaot@tognaenn.org> - 2017-01-27 20:15 +0000
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Odd Bodkin <bodkinodd@gmail.com> - 2017-01-27 14:20 -0600
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Juliana Auerbach <jaot@tognaenn.org> - 2017-01-27 20:30 +0000
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-02 02:17 +0100
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Irvin Starrett <etrrarn@arneir.etr> - 2017-02-02 05:03 +0000
          Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-02 12:37 +0100
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-28 00:48 +0000
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-29 09:44 +1100
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Y <yanarchi@hotmail.com> - 2017-02-01 15:03 -0800
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-27 14:33 -0600
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-29 10:04 +1100
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "Paul B. Andersen" <relativity@paulba.no> - 2017-01-29 10:31 +0100
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-30 06:46 +1100
          Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "Paul B. Andersen" <relativity@paulba.no> - 2017-01-29 21:55 +0100
            Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-30 20:40 +1100
              Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "Paul B. Andersen" <relativity@paulba.no> - 2017-01-30 21:20 +0100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-31 20:05 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Juanita Forney <iatiet@oetnnrn.org> - 2017-01-31 10:54 +0000
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-01 09:40 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-31 10:20 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-01 09:27 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-31 15:45 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-01 11:04 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-01 11:12 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-01 16:47 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-31 19:42 -0600
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-02 06:58 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-01 14:42 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-02 10:53 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? mlwozniak@wp.pl - 2017-02-01 14:00 -0800
          Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? benj <benj@nobody.net> - 2017-01-30 17:50 -0500
            Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? xxein1@att.net - 2017-01-30 17:39 -0800
            Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-31 20:08 +1100
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-30 09:06 -0600
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-31 20:12 +1100
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-01-28 12:04 +1100
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? mlwozniak@wp.pl - 2017-01-28 03:03 -0800
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-01-29 13:26 +1100
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? mlwozniak@wp.pl - 2017-01-29 11:40 -0800
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-28 18:21 -0800
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-01-29 13:27 +1100
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-29 00:45 -0800
          Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-29 11:52 -0800
            Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-29 12:51 -0800
              Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-29 14:36 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-29 18:04 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-30 23:42 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-01-31 20:10 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-01-31 10:17 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-01 09:43 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-02-02 22:44 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-02 09:37 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-03 08:24 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-03 16:59 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-02-04 12:08 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? benj <benj@nobody.net> - 2017-02-03 20:18 -0500
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-03 21:39 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? The Starmaker <starmaker@ix.netcom.com> - 2017-02-04 12:37 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? alsor@interia.pl - 2017-02-04 14:32 -0800
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? benj <benj@nobody.net> - 2017-02-03 20:23 -0500
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-02-04 12:06 +1100
        Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-29 19:50 +1100
          Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Sylvia Else <sylvia@not.at.this.address> - 2017-01-29 19:59 +1100
            Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-30 06:50 +1100
              Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-30 09:25 -0600
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-01-31 20:19 +1100
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Juanita Forney <iatiet@oetnnrn.org> - 2017-01-31 10:59 +0000
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-31 10:49 -0600
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? Tom Roberts <tjroberts137@sbcglobal.net> - 2017-01-31 10:44 -0600
                Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-01 10:10 +1100
  Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-01-30 19:03 -0800
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? alsor@interia.pl - 2017-01-31 10:43 -0800
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-01 10:12 +1100
      Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? alsor@interia.pl - 2017-02-01 11:46 -0800
  Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? JanPB <filmart@gmail.com> - 2017-01-31 15:20 -0800
    Re: Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "HGW, DSc." <HG@....> - 2017-02-02 07:00 +1100
  Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-01 12:13 -0800
    Let's Get This Straight. Is Free Falling 'Inertial' or Is it NOT? "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-01 12:18 -0800

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