|MadSci Network: Astronomy|
I have read the question and answer Andrew DeVault's "Red Shift, how solid is the theory?" 7/13/96 and cannot help but believe that Stephen Murray's reply requires a photon to implicitly be a perpetual motion machine. That is, a photon that is millions of years old has the same energy as a newly generated photon. Being a patent attorney by trade, I have been convinced that perpetual motion machines are not physically possible. Yet the theory of the expanding universe seems to relies on their very existence. It would seem to my undisciplined mind that a photon, like any other thing in this universe, is subject to the laws of entropy. Thus light from a distant galaxy would necessarily loose energy as it travels, thus causing an increasing red shift the further it travels and thus cause the same uniform red shift that others are using to explain the expanding universe theory. Furthermore, just saying that photons are not immune from entropy would remove the need for the complex and irregular gravity well explanation posed in Stephen Murray's reply. Is there any evidence that red shift is not due to entropy or other means causing photons loose energy as they travel? Thank you.
Re: Are photons perpetual motion machines?
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