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Níckolas Alves
  • Member for 4 years, 11 months
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46 votes

Why do we need tensors in modern physics?

26 votes
Accepted

Addition of gravitational fields in general relativity

21 votes

If the escape velocity at the event horizon is the speed of light does it mean that slower bodies won't move away at all?

21 votes
Accepted

Can an electric field be converted into a magnetic field and how? If not, then why?

17 votes

Features of General Relativity applicable only to 3+1 dimensions?

15 votes

How do gravitational waves propagate?

13 votes

Why can't the information inside a black hole be reconstructed from what's left outside?

12 votes

Tidal force in equivalence principle

12 votes
Accepted

Does mutual attraction of charged particle violate Newton's Third Law

11 votes
Accepted

What is the physical intuition behind this energy conservation theorem?

10 votes

Why do we give so much importance to energy, i.e., the conserved quantity under time symmetry?

10 votes

Is it possible to derive the Weyl tensor from the Ricci tensor or Ricci scalar? If so, how?

9 votes
Accepted

Is it the mass that bends spacetime, or is it the gravity?

9 votes

Is the metric tensor an intrinsic property of spacetime or is it coordinate dependent?

8 votes
Accepted

How to implement a Hilbert space on a manifold?

8 votes

Does the expansion of spacetime add energy to matter?

8 votes
Accepted

Does an accelerated rocket curve spacetime?

7 votes

No such thing as electrostatic force

7 votes

Without saying "cross product" explain why there is a skew-symmetric angular momentum tensor

7 votes

Hawking Temperature for a Given Metric

7 votes

Might the tiny Hawking radiation from our cosmic event horizon (CEH) be additive, since my CEH is not your CEH?

6 votes

What are quantum fields made up of?

6 votes
Accepted

Scalar field theory with two scalars

6 votes

Is the universe made up of particles or fields?

6 votes
Accepted

What is the physical interpretation of the two tree-level Feynman diagrams for $e^-e^- \to e^-e^-$ scattering?

5 votes
Accepted

Analytic Manifolds and General Relativity

5 votes

Is singularity without black hole possible?

5 votes
Accepted

Thought experiment on temperature dependence of black body radiation

5 votes
Accepted

Operator diagonalization in Quantum Mechanics

5 votes
Accepted

Need review for the following claims regarding Relativity

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