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marcos , 5 hours ago Do they even exist if they don’t move? No. Or, at least not from our point of view. They only exist moving at the speed at light. All particles with no rest mass only exist moving at the speed of light.
Do they even exist if they don’t move?
No. Or, at least not from our point of view.
They only exist moving at the speed at light. All particles with no rest mass only exist moving at the speed of light.