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mike stone
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726 Answers

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77
Why does rainwater form moving waves on the ground? Is there a name for this effect?
Mar 19 '17 at 13:20
58
Why does a body always rotate about its center of mass?
Feb 12 '17 at 16:26
54
Can a battleship float in a tiny amount of water?
Dec 16 '18 at 14:13
22
Triviality of interacting QFT
Jun 5 at 22:10
20
Is the right hand rule a trick to avoid tensors?
Sep 8 '18 at 15:24
19
Non-unique zero function in the function space (Hilbert space)
Apr 20 at 17:30
19
Approximating an expression for a potential
Aug 4 '19 at 12:40
19
Lorentz invariance of Maxwell's equations in matter
May 8 '19 at 15:44
15
Misunderstanding of the magnetic field
Jun 7 at 18:15
13
Can you make a laser without cavity, if you have a pump strong enough? I think no, but is my reasoning correct?
Apr 12 at 13:20
13
Can a Hermitian operator $A$ bring a wavefunction $|\psi \rangle$ out of Hilbert space?
Sep 6 '19 at 14:41
11
Meissner Effect and Lorentz Force Paradox?
Jul 16 at 13:20
11
Why does $\langle \psi_1 \psi_2 | H_1|\psi_1 \psi_2 \rangle= \langle \psi_1 | H_1|\psi_1 \rangle \langle \psi_2 | \psi_2 \rangle$?
Nov 22 '19 at 15:58
11
Why do we need the coupling small when doing perturbative QFT calculation?
Oct 9 '19 at 11:27
11
Complex conjugate and transpose “with respect to a basis”
Sep 7 '19 at 16:14
10
How does Fermat's principle make light choose a straight path over a short path?
Jul 24 at 16:56
10
Intuition behind Bernoulli's equation
Apr 10 at 18:11
10
How does a linear operator act on a bra?
Sep 13 '19 at 12:49
10
Chirality of the Electromagnetic Field Tensor
Sep 20 '18 at 14:37
9
Green's function on torus
Jan 5 at 15:54
9
Why don't we define potential due to a magnetic field?
Dec 26 '19 at 14:54
9
Is the scalar product also a wave function?
May 11 '19 at 17:14
8
Book recommendations for Fourier Series, Dirac Delta Function and Differential Equations?
Dec 8 '19 at 17:49
8
Find the Bogoliubov transformation $b=SaS^\dagger$ induced by the squeezed operator
Jul 11 '18 at 12:52
8
How does a twisted piece of string/yarn wind back on itself? What kinds of forces are responsible for this?
Oct 21 '19 at 20:43
8
Is it possible to actually run Sidney Coleman's “Diehard” experiment?
Oct 6 '19 at 21:40
8
How to prove that the covariant derivative obeys the product rule
Jul 19 '19 at 17:48
8
Zumino's consistent and covariant anomalies - applied to quantum hall?
Jun 18 '15 at 13:26
7
Does $U^T U$ have real eigenvectors if $U$ is unitary?
Sep 10 '19 at 16:15
7
GR as a gauge theory: there's a Lorentz-valued spin connection, but what about a translation-valued connection?
Oct 30 '18 at 12:42
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