Physics
mike stone
  • University of Illinois
  • Member for 6 years, 4 months
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1,209 Answers

Votes Activity Newest
80
Why does rainwater form moving waves on the ground? Is there a name for this effect?
Mar 19 '17 at 13:20
68
Why doesn't a mercury thermometer follow the rules of volume dilatation?
Nov 11 '20 at 21:32
67
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
30
Why do physicists use the Bra and Ket notation when mathematicians tend not to?
Apr 28 at 21:33
28
Why does it take so long for a gas to reach a thermal equilibrium?
May 3 at 17:01
27
Triviality of interacting QFT
Jun 5 '20 at 22:10
24
Why is the mechanical advantage 8 and not 4 in this pulley system?
Jul 19 at 21:40
24
Must observables be Hermitian only because we want real eigenvalues, or is more to that?
Apr 24 at 12:08
21
Why do images not appear inverted when looking directly through a pinhole camera?
Apr 10 at 12:06
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 '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
Is continuity of the wavefunction "put in by hand" for the Dirac delta potentials?
Nov 15 '20 at 20:06
15
Misunderstanding of the magnetic field
Jun 7 '20 at 18:15
14
Are the speed of sound and water ripples' speed the same?
Feb 27 at 20:30
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 '20 at 13:20
13
Can a Hermitian operator $A$ bring a wavefunction $|\psi \rangle$ out of Hilbert space?
Sep 6 '19 at 14:41
12
Do spinors form a vector space?
May 16 at 13:57
12
Do elementary particles at rest produce magnetic fields?
Oct 25 '20 at 19:19
12
Green's function on torus
Jan 5 '20 at 15:54
12
Complex conjugate and transpose "with respect to a basis"
Sep 7 '19 at 16:14
11
How much vacuum is needed to lift?
Apr 19 at 22:30
11
Angular momentum in movement along a straight line
Apr 6 at 11:45
11
How can Cooper pairs form in zero temperature, if there are no phonons?
Dec 1 '20 at 13:08
11
Are eigenfunctions of $E$ also eigenfunctions of $p$?
Nov 10 '20 at 22:43
11
How can different points on a rigid body move with different speeds but also be relatively at rest?
Aug 14 '20 at 12:14
11
Meissner Effect and Lorentz Force Paradox?
Jul 16 '20 at 13:20
11
Intuition behind Bernoulli's equation
Apr 10 '20 at 18:11
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