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MBN
  • Member for 11 years, 7 months
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13 votes

Is time travel possible? Is it possible to go back in time?

12 votes
Accepted

$p\ \text dq$ is the "tautological" one-form?

11 votes

Why did the universe not collapse to a black hole shortly after the big bang?

10 votes

Comprehensive book on group theory for physicists?

8 votes

Physics for mathematicians

8 votes

Is it foolish to distinguish between covariant and contravariant vectors?

6 votes

Does vacuum (empty space) exist?

6 votes

What are the most important papers in physics?

6 votes

Can Noether's theorem be understood intuitively?

4 votes

Finding the appropriate coordinate transformation given two metrics

4 votes

How can a set of components fail to make up a vector?

3 votes
Accepted

Why can a killing vector field be determined globally by its value and first derivative at one point?

3 votes
Accepted

What would be a proper set of subjects, along with their order, for someone interested in string theory?

3 votes

Momentum-Representations in Quantum Mechanics

2 votes

Arguments for and against Many Worlds?

2 votes

Should physicists abandon Popperian falsification criterion?

2 votes

Astronomy: Are any vanished objects visible to the naked eye?

2 votes

In the static spacetime, the extrinsic curvature of hypersurface $t=constant$ is zero

2 votes

Determining whether a space is really three or two dimensional?

2 votes

Heuristics for the Hawking mass

2 votes
Accepted

Equilibrium for a rope hanging in a Schwarzschild spacetime

2 votes

Is there any *global* timelike Killing vector in Schwarzschild geometry?

1 vote
Accepted

Geodesic deviation in flat space

1 vote

Is dynamics in GR unique?

1 vote

The universe is expanding but why the galaxies have no motion?

1 vote

A professional physics career without a degree?

1 vote

Graduate Physics Problems Books

1 vote
Accepted

Book request for an abstract treatment of QM without using any particle formalism

1 vote

How to apply an algebraic operator expression to a ket found in Dirac's QM book?

1 vote
Accepted

Stuck following derivation of geodesic equation