User hyportnex

33 votes

2 answers

2k views

What is the magnetic flux through a trefoil knot?

asked Jul 31, 2020 at 19:06

28 votes

3 answers

851 views

Uncertainty relation for non-simultaneous observation

asked Nov 11, 2014 at 16:47

11 votes

2 answers

395 views

What is the topology of a phase diagram?

asked Oct 14, 2018 at 1:18

10 votes

4 answers

826 views

Carroll's interpretation of 1-forms

asked Sep 16, 2019 at 13:56

6 votes

2 answers

152 views

How about retrodiction, if climate prediction is difficult?

asked Jan 26, 2014 at 2:11

5 votes

1 answer

372 views

Intuition behind Poynting's theorem: relative sign between the electric and magnetic contributions to the energy

asked Jan 26, 2020 at 21:32

4 votes

2 answers

193 views

Impossibility of lossless matched 3-port combiner

asked Jun 22, 2019 at 12:22

4 votes

0 answers

37 views

Gibbs-Duhem equation and homogeneous function of mixed Euler order

asked Feb 20 at 15:52

3 votes

1 answer

693 views

Optimality of the Carnot cycle

asked Dec 22, 2016 at 21:07

3 votes

1 answer

181 views

Proof of a vector calculus identity

asked Sep 4, 2020 at 21:20

3 votes

0 answers

69 views

Proof that only a homogenous ellipsoid can be uniformly magnetized?

asked Sep 13, 2020 at 21:07

2 votes

2 answers

328 views

Geometric interpretation of $\vec v \cdot \operatorname{curl} \vec v = 0$

asked Dec 7, 2014 at 17:00

2 votes

1 answer

50 views

Conservation of Extensive Quantities

asked Jan 9 at 21:32

1 vote

3 answers

209 views

Black body radiation and thermal equilibration

asked Aug 8, 2020 at 17:24

1 vote

0 answers

178 views

energy conservation in an electric circuit

asked Oct 19, 2015 at 11:05

1 vote

1 answer

698 views

magnetic potential vs. solid angle

asked Mar 2, 2017 at 22:42

1 vote

2 answers

411 views

What does a volume integral of $\textbf{J}$ mean?

asked Apr 28, 2017 at 21:44

1 vote

0 answers

73 views

How can a linear equilibrium temperature distribution be obtained for an ideal gas in a long tube?

asked May 15, 2020 at 18:13

1 vote

0 answers

14 views

Dependence of melting/boiling on external electric or magnetic fields

asked Feb 5, 2019 at 14:19

1 vote

1 answer

66 views

Nyquist noise and thermal equilibration

asked Nov 18, 2020 at 20:53

1 vote

1 answer

203 views

Why is Sellmeier's equation an even function of $\lambda$?

asked Apr 14, 2021 at 23:34

1 vote

3 answers

94 views

Radiation damage in a crystal

asked Apr 15, 2021 at 20:40

1 vote

0 answers

38 views

Diffraction physics v. parageometric optics, whatever happened to it?

asked May 3, 2021 at 21:03

1 vote

0 answers

36 views

Planck on the entropy of light

asked May 10, 2021 at 16:40

1 vote

0 answers

25 views

Caratheodory adiabatic inaccessibility with more than one deformation variable

asked Nov 10, 2021 at 3:54

1 vote

0 answers

36 views

Black body thermal radiation vs. the uniqueness of EM energy in Poynting's theorem

asked Dec 24, 2021 at 21:37

1 vote

0 answers

48 views

Uniqueness of Irreversible and adiabatic processes in finite time

asked Jan 17, 2022 at 3:56

1 vote

0 answers

37 views

Prigogine vs. Bronsted and the minimum entropy production principle

asked Feb 21, 2022 at 2:46

1 vote

0 answers

47 views

Entropy Currents and their meaning

asked Mar 6, 2022 at 16:30

1 vote

0 answers

29 views

Reading "A Convex Darboux Theorem" by Chiappori & Ekeland

asked Jul 3, 2022 at 0:02

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44 Questions

What is the magnetic flux through a trefoil knot?

Uncertainty relation for non-simultaneous observation

What is the topology of a phase diagram?

Carroll's interpretation of 1-forms

How about retrodiction, if climate prediction is difficult?

Intuition behind Poynting's theorem: relative sign between the electric and magnetic contributions to the energy

Impossibility of lossless matched 3-port combiner

Gibbs-Duhem equation and homogeneous function of mixed Euler order

Optimality of the Carnot cycle

Proof of a vector calculus identity

Proof that only a homogenous ellipsoid can be uniformly magnetized?

Geometric interpretation of $\vec v \cdot \operatorname{curl} \vec v = 0$

Conservation of Extensive Quantities

Black body radiation and thermal equilibration

energy conservation in an electric circuit

magnetic potential vs. solid angle

What does a volume integral of $\textbf{J}$ mean?

How can a linear equilibrium temperature distribution be obtained for an ideal gas in a long tube?

Dependence of melting/boiling on external electric or magnetic fields

Nyquist noise and thermal equilibration

Why is Sellmeier's equation an even function of $\lambda$?

Radiation damage in a crystal

Diffraction physics v. parageometric optics, whatever happened to it?

Planck on the entropy of light

Caratheodory adiabatic inaccessibility with more than one deformation variable

Black body thermal radiation vs. the uniqueness of EM energy in Poynting's theorem

Uniqueness of Irreversible and adiabatic processes in finite time

Prigogine vs. Bronsted and the minimum entropy production principle

Entropy Currents and their meaning

Reading "A Convex Darboux Theorem" by Chiappori & Ekeland