petrushkagoogol
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Can we compute the relativistic velocities of 2 photons or 2 neutrinos ? 
Compute Relativistic Velocities of Photons & Neutrinos
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Can you give a little context? What do you mean by "relativistic velocity" and which two photons or which two neutrinos do you have in mind?petrushkagoogol said:Can we compute the relativistic velocities of 2 photons or 2 neutrinos ?
petrushkagoogol
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Any two that originate from the same source.
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The speed of photons is c. Neutrinos may have any speed < c.
petrushkagoogol
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Does this imply that neutrinos have rest mass ?Dale said:
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The implication goes in the other direction. Neutrinos have mass, therefore they can have any speed < c.petrushkagoogol said:
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Yes, neutrinos have rest mass.petrushkagoogol said: