User Terry Bollinger

137 votes

Accepted

What does it mean for two objects to "touch"?

answered Apr 16, 2012 at 4:43

96 votes

Accepted

Where does the extra kinetic energy come from in a gravitational slingshot?

answered Sep 8, 2014 at 3:42

56 votes

What happens to the energy when waves perfectly cancel each other?

answered Apr 18, 2012 at 4:33

48 votes

Accepted

What is anti-matter?

answered Apr 1, 2012 at 2:43

47 votes

Why is the charge naming convention wrong?

answered Dec 16, 2012 at 8:01

46 votes

Does special relativity make magnetic fields irrelevant?

answered Sep 24, 2012 at 6:14

46 votes

Accepted

Why is electric field strong at sharp edges?

answered Oct 30, 2012 at 18:41

36 votes

Is a suit that hides a soldier's heat signature fundamentally possible?

answered Oct 25, 2014 at 2:55

35 votes

Accepted

If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?

answered Feb 3, 2013 at 5:28

34 votes

Accepted

Can a photon get emitted without a receiver?

answered Feb 22, 2013 at 5:19

33 votes

About the complex nature of the wave function?

answered Dec 6, 2012 at 0:25

32 votes

How do we know photons have spin 1?

answered Aug 13, 2013 at 23:00

31 votes

Quantum mechanics and everyday nature

answered May 23, 2013 at 12:44

26 votes

Accepted

Are some protons more massive than others due to spinning at a different rate or being in a more excited state?

answered Dec 5, 2021 at 22:22

25 votes

Accepted

Are there still 'everyday' phenomena unexplained by Physics?

answered Feb 20, 2013 at 6:12

25 votes

Accepted

Why are alpha particles made of 2 protons and neutrons?

answered Apr 12, 2012 at 0:35

23 votes

A fly in an accelerating car

answered Feb 9, 2013 at 22:02

22 votes

QM without complex numbers

answered Jul 25, 2012 at 0:56

19 votes

Why are the laws of thermodynamics "supreme among the laws of Nature"?

answered Dec 22, 2013 at 4:47

18 votes

Accepted

Why is gravity so hard to unify with the other 3 fundamental forces?

answered Feb 26, 2013 at 22:39

16 votes

What is entropy really?

answered Aug 15, 2014 at 20:43

16 votes

Accepted

Why do they consider radioactive matter with long half lives more dangerous than matter with a short half life?

answered Dec 9, 2012 at 3:45

16 votes

Accepted

Why are electrons and quarks 0-dimensional?

answered Apr 22, 2012 at 22:28

16 votes

How does the process of freezing water remove salt?

answered Apr 28, 2012 at 4:33

16 votes

Accepted

Why are the physical sciences described perfectly by mathematics?

answered Jul 7, 2012 at 2:45

14 votes

Intrinsic structure of electron

answered Jun 16, 2012 at 3:14

14 votes

How does rest mass become energy?

answered Dec 23, 2012 at 3:32

14 votes

Is it possible that there is a color our human eye can't see?

answered Jan 4, 2013 at 7:15

14 votes

Intuitive understanding of the definition of entropy

answered Oct 23, 2013 at 3:23

12 votes

Human perception of distance

answered May 12, 2012 at 2:03

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162 Answers

What does it mean for two objects to "touch"?

Where does the extra kinetic energy come from in a gravitational slingshot?

What happens to the energy when waves perfectly cancel each other?

What is anti-matter?

Why is the charge naming convention wrong?

Does special relativity make magnetic fields irrelevant?

Why is electric field strong at sharp edges?

Is a suit that hides a soldier's heat signature fundamentally possible?

If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?

Can a photon get emitted without a receiver?

About the complex nature of the wave function?

How do we know photons have spin 1?

Quantum mechanics and everyday nature

Are some protons more massive than others due to spinning at a different rate or being in a more excited state?

Are there still 'everyday' phenomena unexplained by Physics?

Why are alpha particles made of 2 protons and neutrons?

A fly in an accelerating car

QM without complex numbers

Why are the laws of thermodynamics "supreme among the laws of Nature"?

Why is gravity so hard to unify with the other 3 fundamental forces?

What is entropy really?

Why do they consider radioactive matter with long half lives more dangerous than matter with a short half life?

Why are electrons and quarks 0-dimensional?

How does the process of freezing water remove salt?

Why are the physical sciences described perfectly by mathematics?

Intrinsic structure of electron

How does rest mass become energy?

Is it possible that there is a color our human eye can't see?

Intuitive understanding of the definition of entropy

Human perception of distance