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Tired or not I wonder how many photons there be to the cubic meter...there would be photons from everywhere ... I like to imagine the many sources and how at any place there must be a representation of everywhere even if each object only contribute one single photon there would be a few.
Tired light... it will meet fiece opposition but I often wonder if the background radiaition could be tired light from beyond where we can imagine light could come from... if you see what I mean.
MOND I am not really sure what is says exactly really so I will read up on it again... anything gravity related I like.
alex
alex
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