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From the perspective of a photon is the "diamiter" of the universe zero?

come to think of it we theorize that the universe started as a singularity... but from the perspective of a photon... isn't it still one?
the effects of relativity should render the universes length 0, its mass infinite and time should have stopped.. once again from the perspective of the photon..

2007-12-31 09:00:30 · 2 answers · asked by Felsen 3 in Science & Mathematics Physics

i should say "from the reference frame of a photon".

2007-12-31 09:20:42 · update #1

2 answers

In the reference frame of the photon, its creation and its annihilation/absorption are simultaneous events. Attempts to anthropomorphize this invariably lead to confusion.

2007-12-31 09:16:13 · answer #1 · answered by Frank N 7 · 0 0

There is no "perspective of the photon." It is a fundamental axiom in Relativity that the speed of light is c in all reference frames. You are positing a reference frame in which the photon is at rest. There is no such reference frame. The question is meaningless.

There is no "reference frame of the photon." It is a fundamental axiom in Relativity that the speed of light is c in all reference frames. You are positing a reference frame in which the photon is at rest. There is no such reference frame. The question is meaningless.

2007-12-31 09:12:10 · answer #2 · answered by Anonymous · 0 1

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