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quant
  • Member for 10 years, 4 months
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3 votes
6 answers
2k views

Is perpetual motion impossible?

4 votes
2 answers
346 views

Can inflation extract information from black holes?

2 votes
1 answer
250 views

What is the expected size of primordial black holes?

1 vote
2 answers
243 views

How is this variation of this ladder paradox resolved?

1 vote
1 answer
237 views

What the rate of heat transfer between my thumb and a surface of known dimensions and properties?

2 votes
0 answers
229 views

Can gravity be blocked or augmented? [duplicate]

2 votes
2 answers
182 views

Why can't we infer the amplitude of the spin vector components from the spin probability when the latter is 50%?

2 votes
1 answer
146 views

Would I be vaporised by incoming light if I crossed the event horizon of a black hole?

0 votes
0 answers
113 views

What does it mean for a physical object to have size?

0 votes
1 answer
110 views

Does space expansion mean the escape velocity at a black hole event horizon is strictly less than $c$?

0 votes
0 answers
77 views

Does the 2nd law of thermodynamics hold inside the event horizon of a black hole?

0 votes
0 answers
60 views

What is the electric field due to a 1D line of charge on the edges of a pillbox geometry?

0 votes
0 answers
56 views

How does a plasma react to a non-uniform, oscillating magnetic field?

0 votes
0 answers
37 views

Are there any known or theoretical mechanisms to prevent a singularity?

1 vote
0 answers
29 views

Does Conformal Cyclic Cosmology imply a finite past?