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A comment on Is The Speed of Light Everywhere the Same?. Parent comment

Re:Is The Speed of Light Everywhere the Same? by sampo on Wednesday August 20, 2014 @08:23AM (#8202015)
> > The speed of light does not vary with time or place.

> That's just an assumption.

Supported by evidence. (And no counter-evidence is known.)

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Re:Is The Speed of Light Everywhere the Same? by alphydan on Wednesday August 20, 2014 @10:05AM (#8202325)
There is plenty of evidence, but it would require to change some of our cosmological models (so it's not without controversy). A physicist that has explored the issue in detail is Joao Magueijo:

https://en.wikipedia.org/wiki/Jo%C3%A3o_Magueijo

For a good review of the VSL Theories (Varying Speed of Light Theories) and the evidence behind them see http://arxiv.org/abs/astro-ph/0305457

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Re:Is The Speed of Light Everywhere the Same? by sampo on Thursday August 21, 2014 @01:29PM (#8208508)
> There is plenty of evidence

According to your second link: "The evidence is currently slim".

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Re:Is The Speed of Light Everywhere the Same? by RivieraKid on Wednesday August 20, 2014 @09:23AM (#8202193)
> Supported by evidence. (And no counter-evidence is known.)

That was true for Newtonian mechanics for a long time too.

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Re:Is The Speed of Light Everywhere the Same? by JoeAltmaier on Wednesday August 20, 2014 @10:03AM (#8202322)
Not for very long. There were things unexplained by Newton starting the first day, right?
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