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OON
  • Member for 8 years, 2 months
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69 votes

Why are protons heavier than electrons?

44 votes

What is the evidence for a supermassive black hole at the center of Milky Way?

30 votes

How does Ehrenfest's theorem apply to the quantum harmonic oscillator?

28 votes

Why was the neutrino thought to be massless?

22 votes

I don't understand why escape velocity is necessary

17 votes
Accepted

How does Lorentz transforming forwards, then backwards, stay consistent?

12 votes
Accepted

Why does conservation of angular momentum explain why planet orbits lie in a plane?

12 votes

How did Planck derive his formula $E=hf$?

12 votes
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Does solving Einstein's field equation depend on Newtonian equations?

11 votes
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Method of image charge for cylindrical conductor

11 votes

Do neutrinos not couple to the Higgs field?

10 votes

What if particle colliders cannot find anything beyond the standard model?

9 votes
Accepted

Is de Sitter space with non-zero curvature an acceptable model for the universe?

8 votes
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Kallen-Lehmann representation versus perturbation theory

7 votes
Accepted

If an electron is in ground state, why can't it lose any more energy?

7 votes

What is the Hamiltonian of General Relativity?

7 votes
Accepted

Existence of a unitary transform $(q,p) \rightarrow (-q, p)$

6 votes
Accepted

Problem with gravity

6 votes
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Quantum Integrable models and string theory

5 votes
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Why is there more land-mass in The Northern Hemisphere?

5 votes

Why do hot and cold spots in CMB maps have an average angular size of 1°?

5 votes
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Interaction of quantum fields

5 votes

What is the difference between a quantum mechanical wave and a classical wave?

5 votes

EM vs Matter wave. The lie and confusion of School Physics

5 votes
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Expectation value of position of eigenstate of position

4 votes
Accepted

Connecting curvature to the 'failure of squares to close'

4 votes
Accepted

Is degenerate neutrino mass possible?

4 votes

Why is the WKB tunneling amplitude a non-perturbative result?

4 votes
Accepted

When does Quantum Mechanics Measurement lead to Mixed State

4 votes
Accepted

What is the physical states in Heisenberg picture?

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