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zephyr
  • Member for 10 years, 2 months
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4 votes
1 answer
343 views

How far could the LHC "fire" a proton into space if we (outside LHC) ignore all interactions but gravity?

3 votes
1 answer
157 views

Stability of square of masses on strings under rotation

3 votes
1 answer
407 views

Are the cylindrical and spherical form of Jeans' equations equivalent?

2 votes
2 answers
1k views

Can the reflection of a candle appear brighter than the candle itself?

1 vote
1 answer
122 views

Are there "eccentric seasons", where do they occur, and why don't we hear more about them?

1 vote
1 answer
107 views

Diffraction pattern from a controlled single-slit experiment

1 vote
1 answer
84 views

Energy and momentum transfer before and after breaking a light string [closed]

1 vote
0 answers
46 views

What is a diffusionless fluid?

1 vote
1 answer
130 views

What size of object does the peak of the cosmological power spectrum correspond to?

1 vote
1 answer
260 views

Gravity through a portal [closed]

0 votes
0 answers
47 views

concept of density in gravitational lensing

0 votes
2 answers
124 views

How velocity dispersion changes with change of inertial frame

0 votes
1 answer
59 views

Does an external perturbing potential appear in the gravitational Poisson equation

0 votes
2 answers
543 views

Friction acting on mass on string