User garyp

88 votes

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Why are the electric force and magnetic force classified as electromagnetism?

answered May 21, 2016 at 14:18

59 votes

Can Newton's laws of motion be proved (mathematically or analytically) or are they just axioms?

answered Nov 12, 2016 at 14:03

35 votes

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Can light continue without a light source?

answered Nov 30, 2017 at 3:43

29 votes

What creates the chaotic motion on a double pendulum?

answered Mar 9, 2014 at 16:05

29 votes

Why are four-legged chairs so common?

answered Jan 20, 2016 at 16:31

27 votes

Why do excited states decay if they are eigenstates of Hamiltonian and should not change in time?

answered Nov 28, 2016 at 15:03

25 votes

Is it foolish to distinguish between covariant and contravariant vectors?

answered Apr 1, 2014 at 17:39

24 votes

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Can light emit light?

answered Feb 3, 2015 at 3:41

23 votes

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How can you make harmonics on a string?

answered Mar 16, 2016 at 13:48

23 votes

Why do physicists say that elementary particles are point particles?

answered May 12, 2016 at 19:40

22 votes

According to the inverse square law, is the intensity at the source always infinity?

answered Aug 20, 2016 at 11:06

21 votes

Getting incorrect results applying Ampere's law

answered Jan 7, 2019 at 21:54

17 votes

Accepted

Force as change in momentum vs. change in velocity

answered May 21, 2014 at 3:56

15 votes

Is the centrifugal force a real force?

answered Apr 18, 2014 at 14:04

15 votes

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Can someone explain the color Pink to me?

answered Oct 17, 2011 at 18:59

14 votes

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What is the difference between Rayleigh scattering and Thomson scattering?

answered Jul 12, 2014 at 15:58

13 votes

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Difference between steady state and equilibrium?

answered Mar 18, 2014 at 0:09

13 votes

Book Recommendation: Quantum optics

answered Jun 16, 2016 at 2:17

12 votes

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Why do we need screen to see real images?

answered Apr 2, 2014 at 14:02

12 votes

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Continuous Fourier transform vs. Discrete Fourier transform

answered Jun 9, 2014 at 17:39

12 votes

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Why isn't there a limit for a Euclidean rotation, as for a Minkowski rotation?

answered Jun 12, 2014 at 21:48

12 votes

Why ket and bra notation?

answered Sep 25, 2016 at 16:20

11 votes

Can two electrons get ever so close as to touch each other?

answered Sep 22, 2014 at 2:37

11 votes

Pulley system. Why do I need to put a minus sign?

answered Aug 6, 2016 at 4:13

11 votes

Light's inverse square law: Does it require a minimum distance from the source?

answered May 2, 2016 at 19:28

11 votes

Quick time dilation question (Proper time)

answered Apr 18, 2017 at 12:02

10 votes

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What's a geometric explanation for exponential-falloff fundamental forces?

answered Apr 24, 2014 at 14:43

10 votes

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Band gaps: are they at the centre or at the edge of the Brillouin zone?

answered Mar 20, 2014 at 12:38

9 votes

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frequencies of light

answered Jun 25, 2014 at 15:41

9 votes

Is there a difference between Hertz and 'frames per second'?

answered Jul 21, 2014 at 17:01

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682 Answers

Why are the electric force and magnetic force classified as electromagnetism?

Can Newton's laws of motion be proved (mathematically or analytically) or are they just axioms?

Can light continue without a light source?

What creates the chaotic motion on a double pendulum?

Why are four-legged chairs so common?

Why do excited states decay if they are eigenstates of Hamiltonian and should not change in time?

Is it foolish to distinguish between covariant and contravariant vectors?

Can light emit light?

How can you make harmonics on a string?

Why do physicists say that elementary particles are point particles?

According to the inverse square law, is the intensity at the source always infinity?

Getting incorrect results applying Ampere's law

Force as change in momentum vs. change in velocity

Is the centrifugal force a real force?

Can someone explain the color Pink to me?

What is the difference between Rayleigh scattering and Thomson scattering?

Difference between steady state and equilibrium?

Book Recommendation: Quantum optics

Why do we need screen to see real images?

Continuous Fourier transform vs. Discrete Fourier transform

Why isn't there a limit for a Euclidean rotation, as for a Minkowski rotation?

Why ket and bra notation?

Can two electrons get ever so close as to touch each other?

Pulley system. Why do I need to put a minus sign?

Light's inverse square law: Does it require a minimum distance from the source?

Quick time dilation question (Proper time)

What's a geometric explanation for exponential-falloff fundamental forces?

Band gaps: are they at the centre or at the edge of the Brillouin zone?

frequencies of light

Is there a difference between Hertz and 'frames per second'?