- #1
Jakaha
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OK, so my basic understanding is that GR is all about geometry of space-time. It's all geometry, no other mechanism.
This explains why objects change direction due to gravity. But why does the speed increase?
How does pure geometry cause a change in speed?
Also, where does this kinetic energy come from?
I know people will talk about potential energy, but that's just a hand-waving mathematical trick to balance equations. What does geometry have to do with potential energy?
This explains why objects change direction due to gravity. But why does the speed increase?
How does pure geometry cause a change in speed?
Also, where does this kinetic energy come from?
I know people will talk about potential energy, but that's just a hand-waving mathematical trick to balance equations. What does geometry have to do with potential energy?