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Shashaank
  • Member for 8 years, 2 months
  • Last seen more than 1 year ago
60 votes
10 answers
44k views

Why does a body always rotate about its center of mass? [duplicate]

38 votes
2 answers
29k views

How can wifi penetrate through walls when visible light can't?

10 votes
2 answers
2k views

Does Quantum Theory allow an Electron to take a fraction of Photon energy

9 votes
3 answers
861 views

How does Equivalence Principle imply a Curved Space-Time?

8 votes
4 answers
2k views

What is meant by coordinate time? Isn't it time measured on a clock? If not then what does it measure?

8 votes
4 answers
865 views

If the energy of the photon is conserved along a geodesic why is it redshifted

7 votes
1 answer
2k views

What is my acceleration in my own frame?

5 votes
1 answer
1k views

What happens to the electric field lines when an electron and positron collide? [duplicate]

4 votes
2 answers
366 views

Is proper time equal to the Invariant Interval or the time elapsed in the Rest Frame?

3 votes
1 answer
600 views

Is the spatial metric that you get by writing the Minkowski Metric in a rotating coordinate system curved or not?

3 votes
2 answers
524 views

If the gravitational field contributes to the stress-energy tensor, why is $T^{\mu\nu}=0$ in a vacuum solution?

2 votes
3 answers
554 views

Are worldlines/geodesics coordinate/frame independent

2 votes
1 answer
296 views

What are the Lorentz Transformations between polar coordinates? Or can Lorentz Transformations be Non-Linear?

2 votes
1 answer
1k views

David Tong's passive transformation of the fields is wrong

2 votes
0 answers
179 views

Is this interference and if it is how is it being caused in these pictures [duplicate]

1 vote
0 answers
46 views

Time Dilation for a photon [duplicate]

1 vote
2 answers
966 views

Derivation of Lorentz Transformations [closed]

1 vote
1 answer
13k views

Problem in Proving the potential due to concentric shells between the shells

1 vote
1 answer
2k views

Why does a light bulb light up instantly

1 vote
3 answers
4k views

Is Atmospheric Pressure due to weight of air or the collisions of the Molecules

1 vote
1 answer
953 views

Difference in Flux from an infinite charged sheet and a finite charged sheet

1 vote
2 answers
1k views

A big confusion regarding to the 2 thought experiments of Relativity of Simultaneity leading to other confusions

1 vote
1 answer
266 views

How to find the inverse metric in this case? [duplicate]

1 vote
2 answers
692 views

Does an accelerating mass radiate energy?

1 vote
1 answer
297 views

Electromagnet inside a conducting shell

1 vote
1 answer
418 views

Energy conservation and the 1st law of thermodynamics with external forces

1 vote
1 answer
718 views

Is the complete Hilbert space of a system, sum of the spans of position, momentum, energy, angular momentum spaces, etc?

1 vote
1 answer
933 views

Comoving coordinates and frames in Cosmology

1 vote
2 answers
2k views

Lorentz Transformations for Polar coordinates or Inertial Frame in Polar Coordinates

1 vote
0 answers
166 views

Is Energy conserved in General Relativity [duplicate]