User yippy_yay

54 votes

6 answers

29k views

How do we know photons have spin 1?

asked Aug 12, 2013 at 8:32

30 votes

4 answers

3k views

Why are there no asteroids or meteoroids with relativistic speeds?

asked Aug 9, 2013 at 13:34

22 votes

3 answers

3k views

Why doesn't the no-cloning theorem make lasers impossible?

asked Aug 18, 2013 at 20:14

16 votes

5 answers

2k views

Does a magnetically suspended frog feel weightless?

asked Aug 7, 2013 at 14:50

15 votes

3 answers

2k views

Would an airplane flying through superfluid helium experience lift and drag?

asked May 7, 2014 at 16:33

13 votes

2 answers

2k views

Why does a cathode have to be heated to emit electrons?

asked Aug 9, 2013 at 20:31

11 votes

2 answers

2k views

Why were the fathers of quantum mechanics so sure radioactive decay was indeterministic?

asked Jul 18, 2013 at 18:59

11 votes

10 answers

703 views

Could one measure a stick to an arbitrary precision by having its length estimated by enough people?

asked Mar 30, 2014 at 14:17

9 votes

5 answers

979 views

Why isn't there an atom with an electron at the center and a proton on the outside? [duplicate]

asked Aug 30, 2020 at 21:04

9 votes

1 answer

4k views

What is the invariant associated with the symmetry of boosts? [duplicate]

asked Jul 19, 2013 at 22:00

8 votes

4 answers

2k views

Why doesn't hydrostatic pressure glue objects to the seafloor?

asked Aug 7, 2013 at 21:38

6 votes

1 answer

2k views

Why is velocity normally distributed in a gas, but not energy?

asked Aug 20, 2013 at 8:33

6 votes

1 answer

242 views

Is there mechanical strain on a wire along the direction of current flow?

asked Dec 16, 2015 at 23:21

6 votes

3 answers

626 views

In a radioactive Bose-Einstein condensate, would all the atoms disintegrate simultaneously?

asked Jul 30, 2014 at 9:00

5 votes

3 answers

556 views

Why aren't there more natural satellites orbiting the Earth than just the Moon?

asked Apr 11, 2014 at 9:17

5 votes

1 answer

484 views

If an unloaded transformer doesn't draw current, how can it cause induction?

asked Jan 31, 2018 at 22:51

5 votes

1 answer

388 views

Double slit paradox

asked Aug 21, 2013 at 19:51

5 votes

4 answers

648 views

Why does a force field leave the momentum operator unchanged in the Schrödinger equation?

asked Aug 7, 2013 at 0:11

4 votes

4 answers

286 views

Do nuclear reaction cross sections depend on the angle between incident beam and target-crystal?

asked Aug 21, 2013 at 12:00

3 votes

1 answer

533 views

Why aren't interference patterns wiped out by random phase shifts?

asked Jan 24, 2017 at 19:12

3 votes

1 answer

192 views

How can a positron leave a track in a bubble chamber without being annihilated?

asked Sep 20, 2017 at 18:38

2 votes

2 answers

748 views

Can the wave function of the hydrogen atom be written as a superposition of plane waves with a single frequency?

asked Apr 29, 2014 at 19:07

2 votes

1 answer

208 views

In phase contrast microscopy, how does the phase difference between the diffracted light and the background light come to be?

asked Apr 10, 2020 at 23:43

2 votes

2 answers

2k views

How can an electroscope measure voltage?

asked Sep 18, 2015 at 21:09

1 vote

1 answer

416 views

Why does steam exiting a pressure cooker valve feel cool to the touch?

asked Sep 27, 2020 at 15:51

1 vote

1 answer

144 views

Do we all actually just weigh half of what our bathroom scales tell us?

asked May 14, 2015 at 21:58

1 vote

2 answers

3k views

Wimshurst machine - How does it work?

asked Aug 29, 2015 at 17:55

1 vote

3 answers

730 views

Why isn't a mirror more effective in preventing global warming than a solar panel?

asked Aug 21, 2013 at 13:21

1 vote

2 answers

2k views

Does heat radiation come from the nucleus or the electrons?

asked Aug 24, 2013 at 22:33

1 vote

1 answer

158 views

Does the non-relativistic conservation law of particles have an underlying (approximate) symmetry?

asked Aug 9, 2013 at 11:51

Stack Exchange Network

34 Questions

How do we know photons have spin 1?

Why are there no asteroids or meteoroids with relativistic speeds?

Why doesn't the no-cloning theorem make lasers impossible?

Does a magnetically suspended frog feel weightless?

Would an airplane flying through superfluid helium experience lift and drag?

Why does a cathode have to be heated to emit electrons?

Why were the fathers of quantum mechanics so sure radioactive decay was indeterministic?

Could one measure a stick to an arbitrary precision by having its length estimated by enough people?

Why isn't there an atom with an electron at the center and a proton on the outside? [duplicate]

What is the invariant associated with the symmetry of boosts? [duplicate]

Why doesn't hydrostatic pressure glue objects to the seafloor?

Why is velocity normally distributed in a gas, but not energy?

Is there mechanical strain on a wire along the direction of current flow?

In a radioactive Bose-Einstein condensate, would all the atoms disintegrate simultaneously?

Why aren't there more natural satellites orbiting the Earth than just the Moon?

If an unloaded transformer doesn't draw current, how can it cause induction?

Double slit paradox

Why does a force field leave the momentum operator unchanged in the Schrödinger equation?

Do nuclear reaction cross sections depend on the angle between incident beam and target-crystal?

Why aren't interference patterns wiped out by random phase shifts?

How can a positron leave a track in a bubble chamber without being annihilated?

Can the wave function of the hydrogen atom be written as a superposition of plane waves with a single frequency?

In phase contrast microscopy, how does the phase difference between the diffracted light and the background light come to be?

How can an electroscope measure voltage?

Why does steam exiting a pressure cooker valve feel cool to the touch?

Do we all actually just weigh half of what our bathroom scales tell us?

Wimshurst machine - How does it work?

Why isn't a mirror more effective in preventing global warming than a solar panel?

Does heat radiation come from the nucleus or the electrons?

Does the non-relativistic conservation law of particles have an underlying (approximate) symmetry?