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when toggle format what by license comment
Jan 2, 2017 at 0:02 history edited Joshua CC BY-SA 3.0
added 374 characters in body
Jan 1, 2017 at 23:46 comment added Bill N Please expand on the statement "light takes some convenient reference frame." There is no reference frame attached to light in special relativity.
Jan 1, 2017 at 22:31 history answered Joshua CC BY-SA 3.0