User Tea is life

38 votes

4 answers

24k views

Birds sitting on electric wires: potential difference between the legs

asked Apr 19, 2014 at 19:25

12 votes

3 answers

1k views

Could the Faraday's rotating wire experiment be explained without using Lorentz force?

asked Jan 20, 2015 at 4:02

6 votes

5 answers

1k views

Can "vacuum be brought" from outer space?

asked Aug 9, 2014 at 15:51

6 votes

2 answers

1k views

Why do we hear lesser noise when plastic bags/wrappers are crumpled inside water than when they are crumpled in air?

asked Jul 26, 2014 at 15:22

6 votes

2 answers

9k views

Why is Newton's third law known as weak law of action and reaction?

asked Sep 5, 2015 at 7:11

5 votes

5 answers

6k views

Can only one electron or photon produce interference pattern?

asked Mar 16, 2015 at 18:54

5 votes

3 answers

15k views

Why is surface charge distribution uniform for a conducting sphere? Can't it be arbitrary?

asked Jan 8, 2015 at 21:32

4 votes

2 answers

992 views

What does $v=c$ in the Lorentz transformation for time tell us?

asked Feb 9, 2015 at 3:37

4 votes

5 answers

3k views

Is the plasma state always visible?

asked Jul 28, 2014 at 4:35

4 votes

2 answers

537 views

Why is binding energy $\Delta mc^2$?

asked Jul 31, 2014 at 15:50

4 votes

5 answers

3k views

A current through a wire produces a magnetic field around it. Is the reverse possible?

asked Apr 11, 2015 at 18:34

2 votes

3 answers

2k views

free energy and entropy

asked Feb 25, 2014 at 9:24

2 votes

2 answers

260 views

Weight of a mass falling into an open container which is closed after the mass goes inside it

asked Jan 2, 2015 at 5:49

2 votes

1 answer

645 views

Why is the full eigenfunction a product of eigenfunctions and not a sum?

asked Sep 14, 2014 at 15:03

2 votes

1 answer

423 views

Tidal locking of a planet to a satellite

asked Dec 11, 2014 at 15:42

1 vote

4 answers

2k views

Does it matter which blanket I take below and which one above when I cover myself with the two? [closed]

asked Dec 24, 2014 at 4:54

1 vote

2 answers

541 views

1 charge at the center and many uniformly distributed on the surface of a perfect ideal conducting solid sphere

asked Feb 23, 2014 at 19:27

1 vote

2 answers

127 views

Does the doppler shift have any effect on the energy that the atom absorbs?

asked Apr 29, 2014 at 13:29

1 vote

3 answers

898 views

why does a thread/rope have more tensile strength when swirled like this as shown in the figure?

asked May 16, 2014 at 4:34

1 vote

1 answer

2k views

How is voltage generated due to difference in temperature in a thermocouple? [duplicate]

asked Jul 26, 2014 at 18:17

1 vote

4 answers

428 views

Is it possible to make a low dense object sink in a fluid of higher density by cutting the object in particular shapes?

asked Jun 20, 2015 at 9:34

1 vote

1 answer

269 views

Acceleration of objects with speeds comparable to $c$. Can we find acceleration of the frame by treating $v$ in $1/\sqrt{1-v^2/c^2}$ as variable?

asked Sep 18, 2015 at 14:20

1 vote

1 answer

3k views

What causes the skidding of the wheels of a moving car? Momentum or inertia?

asked Jan 28, 2016 at 10:57

1 vote

1 answer

3k views

How does electrical energy gets converted to sound energy?

asked Feb 2, 2016 at 14:49

1 vote

1 answer

46 views

Why is this ice cloudy at the center and has a transparent layer?

asked Apr 20, 2016 at 16:34

1 vote

2 answers

93 views

Is the electrostatic field really static? Does thermal vibrations not affect it?

asked Aug 29, 2015 at 19:49

0 votes

2 answers

4k views

Why does electrostatic energy not obey superposition principle? What does the extra energy term account for?

asked Aug 28, 2015 at 4:02

-1 votes

1 answer

490 views

When uncertainty is calculated in non normalized eigenstates it doesn't give zero. Shouldn't it give zero?

asked Jan 26, 2016 at 19:40

Stack Exchange Network

28 Questions

Birds sitting on electric wires: potential difference between the legs

Could the Faraday's rotating wire experiment be explained without using Lorentz force?

Can "vacuum be brought" from outer space?

Why do we hear lesser noise when plastic bags/wrappers are crumpled inside water than when they are crumpled in air?

Why is Newton's third law known as weak law of action and reaction?

Can only one electron or photon produce interference pattern?

Why is surface charge distribution uniform for a conducting sphere? Can't it be arbitrary?

What does $v=c$ in the Lorentz transformation for time tell us?

Is the plasma state always visible?

Why is binding energy $\Delta mc^2$?

A current through a wire produces a magnetic field around it. Is the reverse possible?

free energy and entropy

Weight of a mass falling into an open container which is closed after the mass goes inside it

Why is the full eigenfunction a product of eigenfunctions and not a sum?

Tidal locking of a planet to a satellite

Does it matter which blanket I take below and which one above when I cover myself with the two? [closed]

1 charge at the center and many uniformly distributed on the surface of a perfect ideal conducting solid sphere

Does the doppler shift have any effect on the energy that the atom absorbs?

why does a thread/rope have more tensile strength when swirled like this as shown in the figure?

How is voltage generated due to difference in temperature in a thermocouple? [duplicate]

Is it possible to make a low dense object sink in a fluid of higher density by cutting the object in particular shapes?

Acceleration of objects with speeds comparable to $c$. Can we find acceleration of the frame by treating $v$ in $1/\sqrt{1-v^2/c^2}$ as variable?

What causes the skidding of the wheels of a moving car? Momentum or inertia?

How does electrical energy gets converted to sound energy?

Why is this ice cloudy at the center and has a transparent layer?

Is the electrostatic field really static? Does thermal vibrations not affect it?

Why does electrostatic energy not obey superposition principle? What does the extra energy term account for?

When uncertainty is calculated in non normalized eigenstates it doesn't give zero. Shouldn't it give zero?