What did Feynman mean by "gravity itself is a pseudo force"?
7742
Gravitation is not force?
148029
What if Force was not Mass times Acceleration?
125081
What is the reasoning that leads one to postulate this second form for the relativistic particle action?
10504
What are the reasons to expect that gravity should be quantized?
55910
Why gravitational potential is negative, as displacement and force are in the same direction?
21277
Why quantising gravity necessarily give us gravitons?
128238
What is the cause of the normal force?
1955
Physics are not simulated past a certain frame?
63473
Is the shorthand $ \partial_{\mu} $ strictly a partial derivative in field theory?
149353
Feynman diagram for attractive forces
90938
Feynman's infinite amount of logic for one tiny bit of space
5680
What makes a Feynman diagram real or virtual?
86967
The concept of particle in QFT
111578
Why is gravitational potential energy negative, and what does that mean?
155927
Force felt by a moving charge due to its own magnetic field?
144876
Potential for a general fictitious force?
112723
The problem of self-force on point charges