Cosmology for the 21st Century
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Jon
Jon
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Join date : 2020-02-25
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4 easy questions, simply impossible to easily answer Empty 4 easy questions, simply impossible to easily answer

Wed Feb 26, 2020 10:35 am
1} 2 photons depart from a common origin. After 1 year, what is the distance between them?
2} What is the comparative velocity between the 2 photons?
3} If 2 photons are moving parallel to each other, what is there comparative velocity to one another?
4} If the 2 photons are almost parallel, but with a minuscule angle, is the comparative velocity between them less than the speed of light?
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