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tech / sci.physics.relativity / Re: Does the rubber sheet move if gravity does

SubjectAuthor
* Does the rubber sheet move if gravity doesmitchr...@gmail.com
`* Re: Does the rubber sheet move if gravity doesMichael Moroney
 `* Re: Does the rubber sheet move if gravity doesmitchr...@gmail.com
  `* Re: Does the rubber sheet move if gravity doesMichael Moroney
   +* Re: Does the rubber sheet move if gravity doesmitchr...@gmail.com
   |`* Re: Does the rubber sheet move if gravity doesMichael Moroney
   | `* Re: Does the rubber sheet move if gravity doesmitchr...@gmail.com
   |  `* Re: Does the rubber sheet move if gravity doesMichael Moroney
   |   `- Re: Does the rubber sheet move if gravity doesmitchr...@gmail.com
   `- Re: Does the rubber sheet move if gravity doesHuy Dew

1
Does the rubber sheet move if gravity does

<d8f7ee17-d61d-4edd-b1ad-3c4d2d7b73b9n@googlegroups.com>

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Subject: Does the rubber sheet move if gravity does
From: mitchrae...@gmail.com (mitchr...@gmail.com)
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 by: mitchr...@gmail.com - Thu, 30 Sep 2021 18:37 UTC

The Earths rubber sheet moves through
the Sun's. As Earth center of gravity
is orbiting in the Solar curve.

What does the Sun curve do to
the motion of the Moon?

Mitchell Raemsch

Re: Does the rubber sheet move if gravity does

<sj50ts$199b$1@gioia.aioe.org>

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From: moro...@world.std.spaamtrap.com (Michael Moroney)
Newsgroups: sci.physics.relativity
Subject: Re: Does the rubber sheet move if gravity does
Date: Thu, 30 Sep 2021 14:50:39 -0400
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 by: Michael Moroney - Thu, 30 Sep 2021 18:50 UTC

On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
> The Earths rubber sheet moves through
> the Sun's. As Earth center of gravity
> is orbiting in the Solar curve.

The "rubber sheet" is an attempt at visualization, of course. I'm not
sure that you understand that, however.
>
> What does the Sun curve do to
> the motion of the Moon?

Gravity is linear, at least in Newtonian mechanics and weak field GR.
The effects just add. The gravity you feel now is just the sum of the
gravities of all the masses in the universe.

Re: Does the rubber sheet move if gravity does

<7799a075-29b9-423e-846d-71f72a317b7dn@googlegroups.com>

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Subject: Re: Does the rubber sheet move if gravity does
From: mitchrae...@gmail.com (mitchr...@gmail.com)
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 by: mitchr...@gmail.com - Thu, 30 Sep 2021 18:58 UTC

On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
> > The Earths rubber sheet moves through
> > the Sun's. As Earth center of gravity
> > is orbiting in the Solar curve.
> The "rubber sheet" is an attempt at visualization, of course. I'm not
> sure that you understand that, however.
> >
> > What does the Sun curve do to
> > the motion of the Moon?
> Gravity is linear, at least in Newtonian mechanics and weak field GR.
> The effects just add. The gravity you feel now is just the sum of the
> gravities of all the masses in the universe.

No. gravity by the rubber sheet would be a round well.
The sheet is not parabolic in metric.
Gravity has a center not an open curve parabola
geometry.
The Earth rubber sheet would have to move with it
in orbit...

Mitchell Raemsch

Re: Does the rubber sheet move if gravity does

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From: moro...@world.std.spaamtrap.com (Michael Moroney)
Newsgroups: sci.physics.relativity
Subject: Re: Does the rubber sheet move if gravity does
Date: Thu, 30 Sep 2021 18:43:16 -0400
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 by: Michael Moroney - Thu, 30 Sep 2021 22:43 UTC

On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
> On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
>> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
>>> The Earths rubber sheet moves through
>>> the Sun's. As Earth center of gravity
>>> is orbiting in the Solar curve.
>> The "rubber sheet" is an attempt at visualization, of course. I'm not
>> sure that you understand that, however.
>>>
> No. gravity by the rubber sheet would be a round well.
> The sheet is not parabolic in metric.
> Gravity has a center not an open curve parabola
> geometry.
> The Earth rubber sheet would have to move with it
> in orbit...

I was correct, you really don't understand it.

Too bad you are too chicken to READ about it or google for info.

Re: Does the rubber sheet move if gravity does

<60ec180a-3ebe-46b7-a27b-f2ae4bcea5e8n@googlegroups.com>

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Subject: Re: Does the rubber sheet move if gravity does
From: mitchrae...@gmail.com (mitchr...@gmail.com)
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 by: mitchr...@gmail.com - Fri, 1 Oct 2021 03:02 UTC

On Thursday, September 30, 2021 at 3:43:16 PM UTC-7, Michael Moroney wrote:
> On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
> > On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
> >> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
> >>> The Earths rubber sheet moves through
> >>> the Sun's. As Earth center of gravity
> >>> is orbiting in the Solar curve.
> >> The "rubber sheet" is an attempt at visualization, of course. I'm not
> >> sure that you understand that, however.
> >>>
> > No. gravity by the rubber sheet would be a round well.
> > The sheet is not parabolic in metric.
> > Gravity has a center not an open curve parabola
> > geometry.
> > The Earth rubber sheet would have to move with it
> > in orbit...
> I was correct, you really don't understand it.

I don't understand what isn't correct.
If the rubber sheet is valid does it not move with its object?
as gravity gets to move in space?

Mitchell Raemsch

Re: Does the rubber sheet move if gravity does

<sj68ab$996$1@gioia.aioe.org>

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From: moro...@world.std.spaamtrap.com (Michael Moroney)
Newsgroups: sci.physics.relativity
Subject: Re: Does the rubber sheet move if gravity does
Date: Fri, 1 Oct 2021 02:02:54 -0400
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 by: Michael Moroney - Fri, 1 Oct 2021 06:02 UTC

On 9/30/2021 11:02 PM, mitchr...@gmail.com wrote:
> On Thursday, September 30, 2021 at 3:43:16 PM UTC-7, Michael Moroney wrote:
>> On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
>>> On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
>>>> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
>>>>> The Earths rubber sheet moves through
>>>>> the Sun's. As Earth center of gravity
>>>>> is orbiting in the Solar curve.
>>>> The "rubber sheet" is an attempt at visualization, of course. I'm not
>>>> sure that you understand that, however.
>>>>>
>>> No. gravity by the rubber sheet would be a round well.
>>> The sheet is not parabolic in metric.
>>> Gravity has a center not an open curve parabola
>>> geometry.
>>> The Earth rubber sheet would have to move with it
>>> in orbit...
>> I was correct, you really don't understand it.
>
> I don't understand what isn't correct.
> If the rubber sheet is valid does it not move with its object?
> as gravity gets to move in space?

Idiot. There is no rubber sheet. It is a model to help people understand
the concept.

Anyway, at small levels, gravity is linear and additive, the gravity you
feel is the sum of the gravity of the earth, the moon and everything
else in the universe. The effect of the gravity of the earth does move
with the earth, of course.

Re: Does the rubber sheet move if gravity does

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 by: mitchr...@gmail.com - Fri, 1 Oct 2021 19:19 UTC

On Thursday, September 30, 2021 at 11:02:54 PM UTC-7, Michael Moroney wrote:
> On 9/30/2021 11:02 PM, mitchr...@gmail.com wrote:
> > On Thursday, September 30, 2021 at 3:43:16 PM UTC-7, Michael Moroney wrote:
> >> On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
> >>> On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
> >>>> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
> >>>>> The Earths rubber sheet moves through
> >>>>> the Sun's. As Earth center of gravity
> >>>>> is orbiting in the Solar curve.
> >>>> The "rubber sheet" is an attempt at visualization, of course. I'm not
> >>>> sure that you understand that, however.
> >>>>>
> >>> No. gravity by the rubber sheet would be a round well.
> >>> The sheet is not parabolic in metric.
> >>> Gravity has a center not an open curve parabola
> >>> geometry.
> >>> The Earth rubber sheet would have to move with it
> >>> in orbit...
> >> I was correct, you really don't understand it.
> >
> > I don't understand what isn't correct.
> > If the rubber sheet is valid does it not move with its object?
> > as gravity gets to move in space?
> Idiot. There is no rubber sheet.

Then why would it be used to show gravity?
It shows that gravity of Earth moves around
the Sun. If you like the sheet it would show
that it moves...

Mitchell Raemsch
> with the earth, of course.

Re: Does the rubber sheet move if gravity does

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From: wre...@df.we (Huy Dew)
Newsgroups: sci.physics.relativity
Subject: Re: Does the rubber sheet move if gravity does
Date: Fri, 1 Oct 2021 19:23:39 -0000 (UTC)
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 by: Huy Dew - Fri, 1 Oct 2021 19:23 UTC

Michael Moroney wrote:

>> No. gravity by the rubber sheet would be a round well.
>> The sheet is not parabolic in metric.
>> Gravity has a center not an open curve parabola geometry.
>> The Earth rubber sheet would have to move with it in orbit...
>
> I was correct, you really don't understand it.
> Too bad you are too chicken to READ about it or google for info.

it takes years to realize the gradient is perpendicular, you stupid.

Re: Does the rubber sheet move if gravity does

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From: moro...@world.std.spaamtrap.com (Michael Moroney)
Newsgroups: sci.physics.relativity
Subject: Re: Does the rubber sheet move if gravity does
Date: Fri, 1 Oct 2021 23:46:54 -0400
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 by: Michael Moroney - Sat, 2 Oct 2021 03:46 UTC

On 10/1/2021 3:19 PM, mitchr...@gmail.com wrote:
> On Thursday, September 30, 2021 at 11:02:54 PM UTC-7, Michael Moroney wrote:
>> On 9/30/2021 11:02 PM, mitchr...@gmail.com wrote:
>>> On Thursday, September 30, 2021 at 3:43:16 PM UTC-7, Michael Moroney wrote:
>>>> On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
>>>>> On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
>>>>>> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
>>>>>>> The Earths rubber sheet moves through
>>>>>>> the Sun's. As Earth center of gravity
>>>>>>> is orbiting in the Solar curve.
>>>>>> The "rubber sheet" is an attempt at visualization, of course. I'm not
>>>>>> sure that you understand that, however.
>>>>>>>
>>>>> No. gravity by the rubber sheet would be a round well.
>>>>> The sheet is not parabolic in metric.
>>>>> Gravity has a center not an open curve parabola
>>>>> geometry.
>>>>> The Earth rubber sheet would have to move with it
>>>>> in orbit...
>>>> I was correct, you really don't understand it.
>>>
>>> I don't understand what isn't correct.
>>> If the rubber sheet is valid does it not move with its object?
>>> as gravity gets to move in space?
>> Idiot. There is no rubber sheet.
>
> Then why would it be used to show gravity?

Because it demonstrates the effect of mass on nearby objects. With no
mass the rubber sheet is flat and if you roll a marble across it it goes
straight. Put a heavy mass in it and roll the marble and it curves
toward the mass, perhaps striking it. A stationary marble doesn't remain
stationary, it falls toward the mass. The rubber represents spacetime
curving.

Now do you really understand teaching demos like that? Do you look out
at the night sky and expect to see a rubber sheet and not stars?

Re: Does the rubber sheet move if gravity does

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Date: Sat, 2 Oct 2021 11:32:42 -0700 (PDT)
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Subject: Re: Does the rubber sheet move if gravity does
From: mitchrae...@gmail.com (mitchr...@gmail.com)
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 by: mitchr...@gmail.com - Sat, 2 Oct 2021 18:32 UTC

On Friday, October 1, 2021 at 8:46:54 PM UTC-7, Michael Moroney wrote:
> On 10/1/2021 3:19 PM, mitchr...@gmail.com wrote:
> > On Thursday, September 30, 2021 at 11:02:54 PM UTC-7, Michael Moroney wrote:
> >> On 9/30/2021 11:02 PM, mitchr...@gmail.com wrote:
> >>> On Thursday, September 30, 2021 at 3:43:16 PM UTC-7, Michael Moroney wrote:
> >>>> On 9/30/2021 2:58 PM, mitchr...@gmail.com wrote:
> >>>>> On Thursday, September 30, 2021 at 11:50:39 AM UTC-7, Michael Moroney wrote:
> >>>>>> On 9/30/2021 2:37 PM, mitchr...@gmail.com wrote:
> >>>>>>> The Earths rubber sheet moves through
> >>>>>>> the Sun's. As Earth center of gravity
> >>>>>>> is orbiting in the Solar curve.
> >>>>>> The "rubber sheet" is an attempt at visualization, of course. I'm not
> >>>>>> sure that you understand that, however.
> >>>>>>>
> >>>>> No. gravity by the rubber sheet would be a round well.
> >>>>> The sheet is not parabolic in metric.
> >>>>> Gravity has a center not an open curve parabola
> >>>>> geometry.
> >>>>> The Earth rubber sheet would have to move with it
> >>>>> in orbit...
> >>>> I was correct, you really don't understand it.
> >>>
> >>> I don't understand what isn't correct.
> >>> If the rubber sheet is valid does it not move with its object?
> >>> as gravity gets to move in space?
> >> Idiot. There is no rubber sheet.
> >
> > Then why would it be used to show gravity?
> Because it demonstrates the effect of mass on nearby objects. With no
> mass the rubber sheet is flat and if you roll a marble across it it goes
> straight. Put a heavy mass in it and roll the marble and it curves
> toward the mass, perhaps striking it. A stationary marble doesn't remain
> stationary, it falls toward the mass. The rubber represents spacetime
> curving.
>
> Now do you really understand teaching demos like that? Do you look out
> at the night sky and expect to see a rubber sheet and not stars?

Where do jets come from?
How do they get to the poles?
Why do they not obey escape velocity there?

Mitchell Raemsch

tech / sci.physics.relativity / Re: Does the rubber sheet move if gravity does

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