User Young Kindaichi

31 votes

3 answers

4k views

If we repeatedly divide a colorful solid in half, at what point will the color disappear?

asked May 7, 2021 at 19:44

21 votes

4 answers

5k views

If we repeatedly divide a solid in half, at what point does it stop being a solid? [closed]

asked Oct 1, 2020 at 9:05

20 votes

5 answers

3k views

How similar are phonons and photons?

asked Apr 12, 2021 at 9:38

18 votes

2 answers

2k views

Another Solution To Brachistochrone Problem

asked Nov 18, 2020 at 13:02

13 votes

11 answers

2k views

Where does the irreversiblity came from if all the fundamental interaction are reversible?

asked Jun 29, 2021 at 4:30

8 votes

2 answers

3k views

Why do we need to hit the Stirling engine to start it?

asked Feb 16, 2022 at 9:38

8 votes

2 answers

870 views

What does $\exp\left( ax\frac{d}{dx} \right)$ do on $\psi(x)$?

asked Feb 8, 2021 at 14:21

8 votes

4 answers

2k views

What would happen if the Pauli exclusion principle did not exist?

asked Oct 23, 2020 at 2:28

6 votes

1 answer

244 views

Measuring particle spin in 1-Dimensional world

asked Dec 5, 2020 at 7:45

6 votes

1 answer

648 views

Is it right to replace Hamiltonian with Lagrangian in the Schrödinger equation?

asked Nov 12, 2020 at 7:14

6 votes

1 answer

1k views

What's a charge density wave?

asked May 12, 2022 at 17:34

6 votes

2 answers

247 views

Why does symmetry of the system depends on the gauge for particle in magnetic field?

asked Feb 14, 2022 at 10:09

5 votes

2 answers

504 views

How much Higgs mass do I have?

asked Nov 8, 2020 at 8:07

4 votes

3 answers

122 views

How hammering my TV remote make it working?

asked Oct 28, 2020 at 5:51

4 votes

1 answer

282 views

Continuous Transition From gas to liquid

asked Aug 2, 2020 at 17:54

4 votes

0 answers

91 views

Explanation for strange pattern appear on Bath tub with sand in it

asked May 7, 2021 at 18:52

4 votes

1 answer

385 views

How to know If the given space is torsionfree?

asked Nov 27, 2021 at 15:16

4 votes

3 answers

470 views

How come the filled water bottle work as a stylus for phone but not the empty bottle?

asked Jun 12, 2021 at 5:07

4 votes

3 answers

242 views

Line Integral of electric field through the nucleus

asked Nov 28, 2020 at 20:47

4 votes

1 answer

443 views

Why there aren't classical field associated with fermions?

asked Apr 11, 2021 at 10:35

4 votes

1 answer

193 views

Picturing Photon Gas

asked Mar 11, 2021 at 18:04

3 votes

1 answer

473 views

Normalization factor for symmetric state

asked Mar 25, 2021 at 18:01

3 votes

1 answer

174 views

Proof of the set of compatible observable have a bound

asked Apr 24, 2021 at 16:48

3 votes

3 answers

82 views

How many water molecules should I put together before I can tell If it's liquid, gas or Solid?

asked May 20, 2021 at 12:32

3 votes

1 answer

137 views

Does the generator of the group need to be physical observables?

asked Jan 5, 2022 at 7:09

3 votes

2 answers

457 views

Why can't you always write the anti-symmetric state as slater determinant?

asked Feb 11, 2022 at 6:14

3 votes

9 answers

2k views

Does mass really exist?

asked Oct 30, 2020 at 12:04

3 votes

2 answers

754 views

Physical interpretation for wave function in infinite square well

asked Dec 14, 2019 at 13:05

3 votes

4 answers

1k views

Why is the speed of causality equal to the speed of light?

asked Feb 6, 2020 at 14:02

3 votes

3 answers

149 views

Shouldn't We modify the field in force equation $\mathbf{F}=q\mathbf{E}$?

asked Nov 5, 2020 at 20:15

Stack Exchange Network

157 Questions

If we repeatedly divide a colorful solid in half, at what point will the color disappear?

If we repeatedly divide a solid in half, at what point does it stop being a solid? [closed]

How similar are phonons and photons?

Another Solution To Brachistochrone Problem

Where does the irreversiblity came from if all the fundamental interaction are reversible?

Why do we need to hit the Stirling engine to start it?

What does $\exp\left( ax\frac{d}{dx} \right)$ do on $\psi(x)$?

What would happen if the Pauli exclusion principle did not exist?

Measuring particle spin in 1-Dimensional world

Is it right to replace Hamiltonian with Lagrangian in the Schrödinger equation?

What's a charge density wave?

Why does symmetry of the system depends on the gauge for particle in magnetic field?

How much Higgs mass do I have?

How hammering my TV remote make it working?

Continuous Transition From gas to liquid

Explanation for strange pattern appear on Bath tub with sand in it

How to know If the given space is torsionfree?

How come the filled water bottle work as a stylus for phone but not the empty bottle?

Line Integral of electric field through the nucleus

Why there aren't classical field associated with fermions?

Picturing Photon Gas

Normalization factor for symmetric state

Proof of the set of compatible observable have a bound

How many water molecules should I put together before I can tell If it's liquid, gas or Solid?

Does the generator of the group need to be physical observables?

Why can't you always write the anti-symmetric state as slater determinant?

Does mass really exist?

Physical interpretation for wave function in infinite square well

Why is the speed of causality equal to the speed of light?

Shouldn't We modify the field in force equation $\mathbf{F}=q\mathbf{E}$?