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The answer on my question Does light accelerate as it nears a black hole? leads me to think that light 'gains' the gravitational energy by shifting to a frequency with a higher energy (blue). Is this thought correct?

And is there any method of forcing light to red-shift?

Is this the same principal where low temperature combustion is red... Higher temperature blue (stars)?

Community
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darkspine
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1 Answers1

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You can reflect it on a moving mirror... which will cost you exactly the amount of energy that you will gain from the blueshift. Sorry... no free lunch.

CuriousOne
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