Does gravity (and all other fundamental forces, for that matter) have infinite energy as they seemingly last forever?
3471
Why does holding something up cost energy while no work is being done?
43309
What exactly is infinity?
41170
Why is gravity so hard to unify with the other 3 fundamental forces?
62473
Arguments for the existence of infinity
43505
Why is there no gravitational magnetic field? (Or, is there?)
80785
What is potential energy truly?
94884
If friction acts on car all time, why is it not accelerating forever?
20680
Does infinity exist in physical systems?
99735
Are there any theoretical limits on the energy of a photon?
64959
How exactly does gravity work?
22168
What keeps mass from turning into energy?
26753
How long will the Universe's hydrogen reserves last for?
94778
Why can't I do this to get infinite energy?
129980
Does potential energy in gravitationall field increase mass?
115752
What are the limits of Energy-bending?
77682
Are elementary particles ultimate fate of black holes?
6384
Will an object always fall at an infinite speed in a black hole?