Evidence for the Slowing Down of Light

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Originally posted by halcyonwaters:
If we see a ray of light that appears to be 12 billion years old, we're basing that off of saying it's 12 billion light years away, no?

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The calculation is based on the constancy of the speed of light, yes. However, if the speed of light was greater than it is now for the first few seconds or few hundred million years after the big bang and then stablized at its current rate, the consequences for creationism are nil. The universe is still, basically far too old for Biblical Creation.

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So if light has actually slown down, wouldn't that change how we estimate the ray of light's age?

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Yup, the consequences of this discovery, if it holds, could be very dramatic. But, as above, the rate of slowdown isn't enough to drag us into the Biblical age of the universe.------------------
http://www.hells-handmaiden.com

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Originally posted by halcyonwaters:
Assumption of 12 Billion Years
Total Difference between Original Speed and Speed Now = D
Rate of Slow Down = 12,000,000,000/D

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= Slow Rate of Change at beginning

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Assumption of 6,000 years
Total Difference = D
Rate = 6,000/D

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= Fast Rate of Change at beginning

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Not being a astrophysicist, I don't know if that makes sense when all things considered.

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David

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Not being an astrophysicist, I'm not sure it makes sense either but I don't get it. Sorry, but I have completely missed your point.------------------
http://www.hells-handmaiden.com