Recent content by robcon

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    Deriving speed of light from QED

    Thank you all
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    Deriving speed of light from QED

    @DarMM - Isn't there a loss in explanation power, though? Maxwell's equation can determine the speed of light without assuming that special relativity holds. QED is an extension of Maxwell's equations but requires special relativity to make the same prediction. How can a more approximate theory...
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    Deriving speed of light from QED

    Is it possible to derive the speed of light from quantum electrodynamics (like it can be done from Maxwell's equations) or is the fact that the speed of light in vacuum is constant and has a certain value an assumption in the theory? My understanding is that QED assign a mass zero to photons and...
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    What are the Benefits of Joining a Scientific Community Online?

    Just joined. First post. Hi everybody
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