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Old 10-April-2004, 09:18 PM
Sam5 Sam5 is offline
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Quote:
Originally Posted by Ut
In fact, I performed a rather simple experiment in the lab this year dealing with electromagnetic induction and drag.
Well, tell us what you found out from your experiment.

Quote:
Originally Posted by Ut
And if you want to think of the gravitational field as some sort of medium for the passage of light waves, then you'd have to expect the speed of light to depend on gravitational field strength. The stronger the field, the more quickly one would expect light to propagate. As such, one would expect any light coming from a deep gravitational well to be blue shifted. I don't think that agrees with observations...
No, the stronger the field, the more slowly light propagates, and the stronger the field the more slowly the atoms oscillate, and they emit light at a lower frequency. The “redshift” occurs as the light is being emitted by a slowly oscillating atom. The slow speed of the light emerging from a gravity well does not contribute to the redshift. The light is emitted already redshifted. Read Einstein’s 1911 theory about this. He explains it.