Quote:
Raapys said:
I thought they'd just about concluded that even gravity was limited to c?
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There are a number of observations that do indicate that:
http://en.wikipedia.org/wiki/Speed_o...measurement.3F
As MCT mentioned, however, the earth accelerates towards where the sun *is*, not where it was 8 minutes ago.
Otherwise the earth's orbit would be quite unstable, and we'd all go spinning off into space.
So, there seems to be a relativistic effect that mostly cancels out the lag for slowly moving things.