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Maximal Ideal's user avatar
Maximal Ideal's user avatar
Maximal Ideal
  • Member for 6 years, 3 months
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49 votes
4 answers
12k views

How are magnets held together, and why do they not explode?

25 votes
5 answers
6k views

How would physics explain why I can't un-fold paper? [duplicate]

22 votes
5 answers
5k views

When an object crosses a black hole event horizon, does the entire object cross the event horizon "all at once?"

20 votes
2 answers
2k views

Flywheel half-way through the event horizon of a black hole vs the equivalence principle

17 votes
3 answers
4k views

What exactly would it take to show (hypothetically) that the speed of light (in vacuum) is not constant?

14 votes
6 answers
4k views

Have we directly observed the electric component to EM waves?

5 votes
1 answer
338 views

Explanation for possible interference on a home mirror?

5 votes
3 answers
320 views

Where does the metric directly manifest in physics?

5 votes
1 answer
142 views

What piece of technology is able to record the exact phase of microwaves?

5 votes
1 answer
306 views

de Sitter space vs de Sitter universe

5 votes
2 answers
107 views

Can fundamental particles have magnetic/electric quadrupoles, octopoles, and higher-order moments?

4 votes
1 answer
625 views

Water wave analog of Casimir effect — Does it involve the zeta function? If not, why do QED calculations involve the zeta function?

4 votes
3 answers
164 views

Why is the flatness problem called the "flatness" problem? What is its connection to geometry?

4 votes
1 answer
137 views

How can we claim that electromagnetism has positive definite energy if the energy density is underdetermined?

4 votes
2 answers
306 views

All forces break down into the four fundamental forces/interactions ― Is this really true?

4 votes
1 answer
133 views

What are the ways we have control over single photon emitters? Are there single photon emitters "on demand?"

4 votes
0 answers
199 views

Clarification about Heisenberg’s 1925 paper and the Bohr-Sommerfeld rule

4 votes
2 answers
424 views

Is there differential form notation for Maxwell's equation in curved spacetime?

4 votes
4 answers
277 views

Why does four-momentum have to be tangent to the worldine?

4 votes
1 answer
933 views

Confusion in the Michelson-Morley experiment about beam-splitter vs compensator

4 votes
2 answers
984 views

Light Intensity vs Visibility/Brightness in Double/Single Slit Patterns?

3 votes
2 answers
246 views

Are there experiments that deal with the headlight effect?

3 votes
1 answer
84 views

Underdetermined Problem with "Spring Launchers"?

3 votes
2 answers
163 views

What is the most efficient single-photon detector to date?

3 votes
4 answers
2k views

What causes the spirals to be inward in the bubble chamber images?

3 votes
0 answers
75 views

Is momentum conserved in our current cosmological models?

3 votes
1 answer
108 views

Can tidal locking increase rotational kinetic energy? Where does the energy come from then?

3 votes
1 answer
107 views

How can I make sense of black hole complementarity if the universe consist of one manifold and observers are not married to coordinates?

3 votes
3 answers
218 views

Is there a mathematically rigorous formalization of "operator-valued vectors" from quantum mechanics? [duplicate]

3 votes
2 answers
305 views

Alternative notion of kinetic energy in Newtonian and Lagrangian mechanics?