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tech / sci.physics.relativity / Speed of light eastward vs westward vs northward/southward

SubjectAuthor
* Speed of light eastward vs westward vs northward/southwardAlan B
+* Re: Speed of light eastward vs westward vs northward/southwardPaul Alsing
|`- Re: Speed of light eastward vs westward vs northward/southwardMaciej Wozniak
+- Re: Speed of light eastward vs westward vs northward/southwardTom Roberts
`* Re: Speed of light eastward vs westward vs northward/southwardTom Roberts
 `- Re: Speed of light eastward vs westward vs northward/southwardMaciej Wozniak

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Speed of light eastward vs westward vs northward/southward

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Subject: Speed of light eastward vs westward vs northward/southward
From: amirjf...@aim.com (Alan B)
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 by: Alan B - Wed, 24 Aug 2022 01:07 UTC

What does SRT/GRT have to say about the speed of light being different going eastward vs westward vs northward/southward?

Re: Speed of light eastward vs westward vs northward/southward

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Subject: Re: Speed of light eastward vs westward vs northward/southward
From: pnals...@gmail.com (Paul Alsing)
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 by: Paul Alsing - Wed, 24 Aug 2022 01:09 UTC

On Tuesday, August 23, 2022 at 6:07:27 PM UTC-7, Alan B wrote:

> What does SRT/GRT have to say about the speed of light being different going eastward vs westward vs northward/southward?

Nothing at all, since light travels at c, under any circumstances. Deal with it.

Re: Speed of light eastward vs westward vs northward/southward

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Subject: Re: Speed of light eastward vs westward vs northward/southward
From: maluwozn...@gmail.com (Maciej Wozniak)
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 by: Maciej Wozniak - Wed, 24 Aug 2022 05:53 UTC

On Wednesday, 24 August 2022 at 03:09:49 UTC+2, Paul Alsing wrote:
> On Tuesday, August 23, 2022 at 6:07:27 PM UTC-7, Alan B wrote:
>
> > What does SRT/GRT have to say about the speed of light being different going eastward vs westward vs northward/southward?
> Nothing at all, since light travels at c, under any circumstances. Deal with it.

Even your idiot guru was unable to stick to such
a nonsense for a long time, and his GR shit
had to withdraw from it. Deal with it, Al.

Re: Speed of light eastward vs westward vs northward/southward

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 by: Tom Roberts - Wed, 24 Aug 2022 16:24 UTC

On 8/23/22 8:07 PM, Alan B wrote:
> What does SRT/GRT have to say about the speed of light being
> different going eastward vs westward vs northward/southward?

SR and GR predict that if you use a locally-inertial set of coordinates
for the measurement, the speed of light will be isotropic. So eastward,
westward, northward, southward, upward, downward, and all other
directions will all be measured to have the same value, which is c in
vacuum.

Note that if you use the GPS to provide the time coordinate, and measure
distances with rulers at rest on the surface of the earth, that is NOT a
locally inertial frame, and the prediction is those measurements will
not display isotropy.

Tom Roberts

Re: Speed of light eastward vs westward vs northward/southward

<f4idnSVATMTfD7f-nZ2dnZfqlJxg4p2d@giganews.com>

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Subject: Re: Speed of light eastward vs westward vs northward/southward
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 by: Tom Roberts - Wed, 21 Sep 2022 04:25 UTC

On 8/23/22 8:07 PM, Alan B wrote:
> What does SRT/GRT have to say about the speed of light being
> different going eastward vs westward vs northward/southward?

SR and GR predict that if you use a locally-inertial set of coordinates
for the measurement, the speed of light will be isotropic. So eastward,
westward, northward, southward, upward, downward, and all other
directions will all be measured to have the same value, which is c in
vacuum.

Note that if you use the GPS to provide the time coordinate, and measure
distances with rulers at rest on the surface of the earth, that is NOT a
locally inertial frame, and the prediction is those measurements will
not display isotropy.

Tom Roberts

Re: Speed of light eastward vs westward vs northward/southward

<6c6b6491-f840-43f7-a14d-4c2c8dc4835en@googlegroups.com>

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Subject: Re: Speed of light eastward vs westward vs northward/southward
From: maluwozn...@gmail.com (Maciej Wozniak)
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 by: Maciej Wozniak - Wed, 21 Sep 2022 05:08 UTC

On Wednesday, 21 September 2022 at 06:25:43 UTC+2, tjrob137 wrote:
> On 8/23/22 8:07 PM, Alan B wrote:
> > What does SRT/GRT have to say about the speed of light being
> > different going eastward vs westward vs northward/southward?
> SR and GR predict that if you use a locally-inertial set of coordinates
> for the measurement, the speed of light will be isotropic. So eastward,
> westward, northward, southward, upward, downward, and all other
> directions will all be measured to have the same value, which is c in
> vacuum.
>
> Note that if you use the GPS to provide the time coordinate, and measure
> distances with rulers at rest on the surface of the earth, that is NOT a
> locally inertial frame, and the prediction is those measurements will
> not display isotropy.

Note it yourself, poor halfbrain, and stop fucking
about THE BEST WAY we're all FORCED to.

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