View Full Version : Astronomy Without A Telescope – A Photon’s Point Of View

2011-Aug-06, 09:10 PM
From a photon’s point of view, it is emitted and then instantaneously reabsorbed. This is true for a photon emitted in the core of the Sun, which might be reabsorbed after crossing a fraction of a nanometre’s distance. And it is equally true for a photon that, from our point of view, has travelled for [...]

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