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Jun
9
comment Friction acting on a particle on a rough place
There is static friction even when the particle is not moving. Friction always acts in the direction to oppose motion.
Jun
9
comment Newton's third law of motion, and the collapse of objects under heavier weight
Newton's third law doesn't say anything about whether the table will collapse. It only says that if the truck exerts a force $W$ on the table, the table also exerts $-W$ on the truck. This is true regardless of whether the truck is in a stationary position.
Jun
8
reviewed No Action Needed Can a rock be considered frozen
Jun
7
reviewed No Action Needed How to derive the velocity in the double ball drop problem?
Jun
7
reviewed No Action Needed Physics of donut magnets levitating vertically on a pencil?
Jun
3
reviewed No Action Needed Finite velocity at infinite distance
Jun
3
reviewed No Action Needed force applied not on the center of mass
Jun
3
reviewed No Action Needed Electric Field Lines between two non parallel plates
Jun
1
comment 1 dimensional Ising model
Chapter 7 of Kardar's "Statistical Physics of Fields" explains the low and high temperature expansion of the Ising model.
May
30
reviewed Reviewed Street Light Interference Phenomenon
May
30
reviewed No Action Needed What happens when a photon hits a beamsplitter?
May
29
reviewed Reviewed Does gravity change the closer you are to the Earth's core?
May
27
comment Non-Hermiticity when Fourier transforming onto a finite lattice
Doesn't the discretized sum have both $k$ and $-k$?
May
23
accepted Precise statement of Mermin–Wagner theorem
May
22
comment Precise statement of Mermin–Wagner theorem
The discussion in relation to a random walker is insightful. Do you have a reference for further reading? Other references, such as the one suggested by @Norbert above, require the coupling constants to be isotropic. However, this condition seems to be absent in your discussion. Why is this so?
May
22
awarded  Popular Question
May
22
asked Precise statement of Mermin–Wagner theorem
May
20
reviewed No Action Needed X-ray diffraction from Metals
May
15
comment Why does quantum cryptography give us uncrackable codes?
Why do you find the claims questionable?
May
15
reviewed No Action Needed Some sort of conservation equation