User D. W.

19 votes

3 answers

4k views

If an electron is an excitation of the electron field, what causes the excitation to be stable?

asked Nov 9, 2015 at 22:00

11 votes

2 answers

9k views

Is there a "difference" between photons that act as virtual particles and photons that act as the quanta of EM radiation?

asked Jun 5, 2014 at 15:09

8 votes

4 answers

2k views

By what mechanism is a photon emitted or absorbed in atomic electron state transitions?

asked Dec 31, 2015 at 19:43

8 votes

2 answers

241 views

Trouble with conceptualizing the "temperature" of a deck of cards

asked Oct 6, 2019 at 7:22

7 votes

4 answers

580 views

How to avoid temperature being infinite at entropy maximum

asked Jan 13, 2017 at 18:23

4 votes

1 answer

1k views

What holds metal atoms together? And what accounts for the strength of metallic bonds?

asked Feb 4, 2017 at 21:21

4 votes

2 answers

2k views

The Spinning Log "Perpetual Motion" problem, and my attempt at a solution

asked Aug 15, 2014 at 16:54

2 votes

1 answer

96 views

How do the wave and particle approximations of light arise from the underlying (I assume, more fundamental) quantum field description?

asked Aug 4, 2016 at 20:27

2 votes

0 answers

81 views

What is it about some (or all) of the properties of Hilbert Spaces that makes them so useful/necessary for modeling so many different systems? [closed]

asked Aug 12, 2016 at 20:47

1 vote

2 answers

152 views

Dark Matter as possible an explanation for Coronal Heating

asked Aug 18, 2014 at 18:26

1 vote

0 answers

48 views

Approximating Gallons of Gas Needed for Trip (read: physics grad. with too much free time)

asked Dec 6, 2015 at 1:11

1 vote

2 answers

389 views

Thermodynamics of a Fire Piston and the First Law

asked Sep 16, 2020 at 22:08

0 votes

2 answers

183 views

What laws/assumptions are considered fundamental/axiomatic to the widest range of fields of physics?

asked May 20, 2018 at 2:45

0 votes

2 answers

3k views

Diffusion of gas into vaccum

asked Sep 14, 2015 at 21:27

0 votes

1 answer

224 views

Why doesn't a changed particle ever lose energy by interacting with others by radiation of virtual photons? Are all virtual photons exchanged?

asked Jul 16, 2014 at 15:32

0 votes

1 answer

175 views

Of what order of magnitude is the effect of spontaneous forward-and-backward reaction H2O <=> OH- + H3O+ on the Gibbs Free Energy of H2O (l)?

asked Aug 18, 2016 at 0:49

0 votes

1 answer

139 views

Sub-/Super Diffusive Processes, Time-averaged MSD and Autocorrelation. Help with interpretation?

asked Sep 25, 2016 at 17:58

0 votes

0 answers

61 views

Model/Equations needed to estimate the amount of alcohol and water that would evaporate out of an open glass of bourbon left out uncovered overnight?

asked Nov 6, 2016 at 7:34

Stack Exchange Network

18 Questions

If an electron is an excitation of the electron field, what causes the excitation to be stable?

Is there a "difference" between photons that act as virtual particles and photons that act as the quanta of EM radiation?

By what mechanism is a photon emitted or absorbed in atomic electron state transitions?

Trouble with conceptualizing the "temperature" of a deck of cards

How to avoid temperature being infinite at entropy maximum

What holds metal atoms together? And what accounts for the strength of metallic bonds?

The Spinning Log "Perpetual Motion" problem, and my attempt at a solution

How do the wave and particle approximations of light arise from the underlying (I assume, more fundamental) quantum field description?

What is it about some (or all) of the properties of Hilbert Spaces that makes them so useful/necessary for modeling so many different systems? [closed]

Dark Matter as possible an explanation for Coronal Heating

Approximating Gallons of Gas Needed for Trip (read: physics grad. with too much free time)

Thermodynamics of a Fire Piston and the First Law

What laws/assumptions are considered fundamental/axiomatic to the widest range of fields of physics?

Diffusion of gas into vaccum

Why doesn't a changed particle ever lose energy by interacting with others by radiation of virtual photons? Are all virtual photons exchanged?

Of what order of magnitude is the effect of spontaneous forward-and-backward reaction H2O <=> OH- + H3O+ on the Gibbs Free Energy of H2O (l)?

Sub-/Super Diffusive Processes, Time-averaged MSD and Autocorrelation. Help with interpretation?

Model/Equations needed to estimate the amount of alcohol and water that would evaporate out of an open glass of bourbon left out uncovered overnight?