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user929304
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49 votes
6 answers
33k views

Difference between spin and polarization of a photon

45 votes
7 answers
6k views

Why is it so easy to create audible sound?

42 votes
1 answer
7k views

Understanding Poisson brackets

41 votes
5 answers
8k views

Hilbert space vs. Projective Hilbert space

32 votes
6 answers
3k views

Simple example showing why measurement & interaction are different

32 votes
1 answer
4k views

Understanding time crystals

30 votes
2 answers
11k views

Why are arched bridges stronger than flat bridges?

20 votes
2 answers
3k views

Topology of phase space

19 votes
7 answers
2k views

Relativity of temperature paradox

17 votes
3 answers
4k views

Demystifying time-reversal symmetry in physics

17 votes
4 answers
4k views

Non-linear systems in classical mechanics

15 votes
1 answer
19k views

Poincaré maps and interpretation

15 votes
3 answers
7k views

Measuring the effective mass

15 votes
4 answers
2k views

Basis independence in Quantum Mechanics

14 votes
0 answers
332 views

Demystifying jamming in many-body systems

11 votes
3 answers
919 views

Why are electrons treated classically in cyclotron measurements?

11 votes
2 answers
28k views

Understanding the Jacobian Matrix

9 votes
1 answer
380 views

Has the Copenhagen Interpretation remained accurate?

9 votes
3 answers
11k views

Susceptibilities and response functions

9 votes
1 answer
3k views

Understanding multipole expansion in classical electrodynamics

9 votes
0 answers
349 views

Putting the importance of the blackhole image into perspective [closed]

8 votes
3 answers
2k views

Extending the ergodic theorem to non-equilibrium systems

8 votes
3 answers
5k views

The equivalence between Heisenberg and Schroedinger pictures

8 votes
2 answers
3k views

Non-integrability of the 2D double pendulum

7 votes
4 answers
1k views

Physical distinction between mixing and ergodicity

7 votes
5 answers
2k views

How to understand singularities in physics?

7 votes
2 answers
2k views

Why does thermodynamic integration work?

6 votes
4 answers
1k views

Brownian motion in a box

6 votes
1 answer
860 views

Literature recommendation for classical density functional theory (DFT) and fundamental measure theory (FMT)

6 votes
3 answers
1k views

Demystifying the connection between magnetic and electric fields