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Related: About this forumTheory that challenges Einsteins physics could soon be put to the test
Theory that challenges Einsteins physics could soon be put to the test
Scientists behind a theory that the speed of light is variable and not constant as Einstein suggested have made a prediction that could be tested.
Einstein observed that the speed of light remains the same in any situation, and this meant that space and time could be different in different situations.
The assumption that the speed of light is constant, and always has been, underpins many theories in physics, such as Einsteins theory of general relativity. In particular, it plays a role in models of what happened in the very early universe, seconds after the Big Bang.
But some researchers have suggested that the speed of light could have been much higher in this early universe. Now, one of this theorys originators, Professor João Magueijo from Imperial College London, working with Dr Niayesh Afshordi at the Perimeter Institute in Canada, has made a prediction that could be used to test the theorys validity.
More:
http://www.heritagedaily.com/2016/11/theory-that-challenges-einsteins-physics-could-soon-be-put-to-the-test/113414
RKP5637
(67,109 posts)longship
(40,416 posts)c^2= 1/(mu-nought*epsilon-nought)
mu describes the strength of the magnetic field strength. epsilon describes the strength of the electric field.
If c changes, those other constants must also change. These changes would have universal changes in the universe. That we can look back billions of years in the universe tells one whether c has changed.
Sadly, for these guys, it has not.
A variable c being faster in the past is one of the big claims of young Earth creationism, to account for their claims of a young universe. Any such claim is highly suspect on this basis alone.
PoindexterOglethorpe
(25,861 posts)I will have to contact my physicist son about this, but I have a feeling is first response will be a mild chuckle. Then he'll explain it to me in wonderful detail.