- #1
bluekuma
- 7
- 0
It's a naive question, but I'm pretty sure my professor said that space-time is locally flat (and I'm pretty sure that the volume of my room counts as "locally").
That said, I would expect falling objects to follow straight trajectories, but that's obviously not the general case.
I thought this could be because straight lines in space-time can be curved when seen in space, but it doesn't seem possible when I try to make some calculations.
Why are geodesics parabolae on the surface of earth? Where am I getting something wrong?
Thanks!
That said, I would expect falling objects to follow straight trajectories, but that's obviously not the general case.
I thought this could be because straight lines in space-time can be curved when seen in space, but it doesn't seem possible when I try to make some calculations.
Why are geodesics parabolae on the surface of earth? Where am I getting something wrong?
Thanks!