Re: Massless Particles

Peritas wrote:
Given a massless particle (rest mass = 0), other than a photon or
graviton, what would be the relativistic explanation for why it can
travel faster than c? What aspect of electromagnetic radiation make
its speed of propagation in free space an upper bound on speed? I
suppose the answer lies with the derivation of the sqrt(1-v2/c2) term
in SR, but I could use some insight from those of you that have a
strong understanding of relativity and its derivation.

Thanks

Please allow me to correct what I'm asking here. I meant to ask,
"...why it *can't* travel faster than c?" in the first sentence.

.

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