User BMS

46 votes

Recommended books for advanced undergraduate electrodynamics

answered Oct 21, 2014 at 16:31

44 votes

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Being in a solid state, why is ice slippery?

answered Feb 12, 2014 at 7:11

41 votes

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In reverse time, do objects at rest fall upwards?

answered Dec 18, 2014 at 18:16

31 votes

Why is acceleration expressed as m/s/s?

answered Jan 30, 2014 at 14:45

24 votes

How does a half-life work?

answered Mar 6, 2014 at 4:45

23 votes

Recommended books for advanced undergraduate electrodynamics

answered Oct 21, 2014 at 16:54

20 votes

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Can you run away from your shadow?

answered Aug 14, 2014 at 15:56

15 votes

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Does the weight of an hourglass change when sands are falling inside?

answered Dec 3, 2013 at 17:33

15 votes

Why is torque not measured in Joules?

answered Jan 15, 2014 at 5:13

14 votes

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Why is force dependent on acceleration, not velocity?

answered Mar 18, 2014 at 2:20

13 votes

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Is radioactive decay spontaneous or random?

answered Mar 25, 2014 at 20:14

12 votes

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If I reflect light from a projector using a mirror, then is the reflected image real or virtual?

answered Aug 6, 2014 at 16:11

12 votes

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Why is the electric field of an infinite insulated plane of charge perpendicular to the plane?

answered Jul 1, 2014 at 15:49

11 votes

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What is the difference between a pulse and a wave?

answered May 18, 2014 at 17:04

10 votes

Did relativity make Newtonian mechanics obsolete?

answered Feb 4, 2014 at 14:02

10 votes

How does one determine ladder operators systematically?

answered Dec 12, 2013 at 23:03

10 votes

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If I turn the light off in a room why does the light instantly disappear?

answered Nov 4, 2014 at 19:40

10 votes

Why is the measured value of some observable $A$, always an eigenvalue of the corresponding operator?

answered Nov 11, 2014 at 3:48

10 votes

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Convert $\text{mm}^2$ to $\text{m}^2$

answered Mar 7, 2014 at 6:39

9 votes

Need of small charge in definition of electric field?

answered Jan 20, 2015 at 17:14

9 votes

How do I see things of the bright room, being in the dark room?

answered Mar 22, 2014 at 13:37

8 votes

Can sound produce electricity?

answered Aug 31, 2014 at 18:10

7 votes

Light in a box with positron walls instead of electrons

answered Dec 19, 2014 at 21:32

7 votes

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Momentum Operator in Quantum Mechanics

answered Mar 18, 2014 at 18:42

6 votes

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Newton's third law does not apply to the kinetic energy formula?

answered Dec 10, 2013 at 4:00

6 votes

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Experimental relationship between linear dependence and superposition

answered Sep 21, 2013 at 0:14

6 votes

Is it normal to see the moon and sun at 3:30 pm in the sky at the same time?

answered Dec 30, 2014 at 21:00

6 votes

Better explanation of the common general relativity illustration (stretched sheet of fabric)

answered Jan 21, 2015 at 20:55

6 votes

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Convention for the potential energy of a dipole in a uniform electric field?

answered Aug 11, 2014 at 14:00

5 votes

Why do we need $2^\text{nd}$ quantization of the Dirac equation

answered Sep 11, 2014 at 2:07

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257 Answers

Recommended books for advanced undergraduate electrodynamics

Being in a solid state, why is ice slippery?

In reverse time, do objects at rest fall upwards?

Why is acceleration expressed as m/s/s?

How does a half-life work?

Recommended books for advanced undergraduate electrodynamics

Can you run away from your shadow?

Does the weight of an hourglass change when sands are falling inside?

Why is torque not measured in Joules?

Why is force dependent on acceleration, not velocity?

Is radioactive decay spontaneous or random?

If I reflect light from a projector using a mirror, then is the reflected image real or virtual?

Why is the electric field of an infinite insulated plane of charge perpendicular to the plane?

What is the difference between a pulse and a wave?

Did relativity make Newtonian mechanics obsolete?

How does one determine ladder operators systematically?

If I turn the light off in a room why does the light instantly disappear?

Why is the measured value of some observable $A$, always an eigenvalue of the corresponding operator?

Convert $\text{mm}^2$ to $\text{m}^2$

Need of small charge in definition of electric field?

How do I see things of the bright room, being in the dark room?

Can sound produce electricity?

Light in a box with positron walls instead of electrons

Momentum Operator in Quantum Mechanics

Newton's third law does not apply to the kinetic energy formula?

Experimental relationship between linear dependence and superposition

Is it normal to see the moon and sun at 3:30 pm in the sky at the same time?

Better explanation of the common general relativity illustration (stretched sheet of fabric)

Convention for the potential energy of a dipole in a uniform electric field?

Why do we need $2^\text{nd}$ quantization of the Dirac equation