A photon emitted by a star on one side of our galaxy is absorbed near a star on the other side of our galaxy 100,000 light-years away from its point of origin as measured in the frame of the galaxy. How does the photon experience its own birth and death? That is to say, what are the space and time separations between the birth and death of the photon in the frame of the photon?
A photon emitted by a star on one side of our galaxy is absorbed near a star on the other side of our galaxy 100,000 light-years away from its point of origin as measured in the frame of the galaxy. How does the photon experience its own birth and death? That is to say, what are the space and time separations between the birth and death of the photon in the frame of the photon?
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6-4 autobiography of a photon
A photon emitted by a star on one side of our galaxy is
absorbed near a star on the other side of our galaxy
100,000 light-years away from its point of origin as
measured in the frame of the galaxy. How does the
photon experience its own birth and death? That is to
say, what are the space and time separations between
the birth and death of the photon in the frame of the
photon?
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