George Baily on Tumblr - However, if you replace Lorenz invariance with...

Tumblr is useful when all the things below happen at once:
- Stumbleupon gets arsey with your bookmarking and thinks you are a spammer;
- Twitter decides your sentence is too long for people;
- You want to share something but don't actually think it merits taking the effort to email the link to anyone.

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However, if you replace Lorenz invariance with Galilean invariance in special relativity, all you have is Coulomb’s law for electrostatics equipped with the fact that it also works for moving charges. This sort of physics, however, is really just like Newtonian gravity but without the principle of equivalence.

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In a universe where the speed of light is infinite…

I am so glad this poster cleared that up for me.