User David Jonsson

3 votes

Do all massive bodies emit Hawking or Unruh radiation?

answered Oct 31, 2021 at 17:20

2 votes

Why don't electrons crash into the nuclei they "orbit"?

answered Sep 9, 2021 at 14:45

2 votes

Induced current in vacuum

answered Sep 7, 2021 at 15:01

2 votes

Why no longitudinal electromagnetic waves?

answered Jul 10, 2022 at 13:15

1 vote

Is temperature in vacuum zero?

answered Nov 5, 2021 at 20:23

1 vote

Could a set of rogue double planets (binary planets) be habitable due to tidal forces?

answered Nov 7, 2021 at 11:24

1 vote

Is there a theoretical efficiency limit for thermoelectric generators?

answered Feb 27, 2023 at 14:52

1 vote

Neutron absorption cross-section of Boron-10

answered Mar 13, 2023 at 20:03

1 vote

Why isn't Whittaker's two scalar electrodynamics used when it is simpler than ordinary electrodynamics?

answered Jan 5 at 16:02

1 vote

Does gravity have anything to do with Van Der Waals forces?

answered Sep 26, 2020 at 14:12

1 vote

Is there a rotation of the polarization plane in rotating refractive media?

answered Nov 7, 2020 at 7:58

1 vote

Quantum Gravity and the Holographic Mass?

answered Jan 30, 2021 at 0:35

1 vote

Is there any uncertainty between mass and proper length or time?

answered May 25, 2016 at 18:13

1 vote

How to calculate gravity inside of a circle of mass?

answered Jul 7, 2019 at 11:00

1 vote

Can a disk like object (like UFO's) really fly?

answered Nov 6, 2019 at 18:58

1 vote

Why is the orbital resonance of the Galilean moons stable?

answered Nov 13, 2019 at 19:31

0 votes

Does there exist a relationship between elasticity tensor $E_{ijkl}$ and $\int_{\Gamma} F^i z^i d \Gamma$?

answered Dec 8, 2019 at 12:59

0 votes

Does it make sense to take an infinitesimal volume of shape other than a cube?

answered Sep 26, 2020 at 13:16

0 votes

Accepted

What is the advantage of using a polar coordinate system with rotating unit vectors?

answered Jul 26, 2019 at 17:23

0 votes

Why don't electrons crash into the nuclei they "orbit"?

answered Sep 9, 2021 at 14:00

0 votes

What rigid body rotation causes rotational viscosity?

answered Jun 10, 2019 at 15:01

0 votes

Is any artificial degree of freedom caused by the concept of electrical currents?

answered Nov 4, 2021 at 18:10

0 votes

What is the radiation field of a black body with temperature $T$ translating at speed $v$?

answered Nov 5, 2021 at 19:05

0 votes

Could sonoluminescence be the result of the Casimir Effect?

answered Nov 2, 2023 at 16:37

0 votes

What is the radiation field of a black body with temperature $T$ translating at speed $v$?

answered Dec 11, 2021 at 17:57

0 votes

Direction of polarization in dielectrics

answered May 31, 2022 at 15:08

0 votes

Is fixing the gauge the same thing as performing a Lorentz transformation?

answered Sep 2, 2022 at 13:05

0 votes

Does the kinetic energy of an individual water molecule (vapor) decrease as it goes up in the atmosphere?

answered Dec 16, 2022 at 16:14

0 votes

Schumann resonance frequency

answered Dec 20, 2022 at 2:14

-3 votes

How can zero point energy vacuum be Lorentz invariant?

answered Dec 23, 2018 at 13:43

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30 Answers

Do all massive bodies emit Hawking or Unruh radiation?

Why don't electrons crash into the nuclei they "orbit"?

Induced current in vacuum

Why no longitudinal electromagnetic waves?

Is temperature in vacuum zero?

Could a set of rogue double planets (binary planets) be habitable due to tidal forces?

Is there a theoretical efficiency limit for thermoelectric generators?

Neutron absorption cross-section of Boron-10

Why isn't Whittaker's two scalar electrodynamics used when it is simpler than ordinary electrodynamics?

Does gravity have anything to do with Van Der Waals forces?

Is there a rotation of the polarization plane in rotating refractive media?

Quantum Gravity and the Holographic Mass?

Is there any uncertainty between mass and proper length or time?

How to calculate gravity inside of a circle of mass?

Can a disk like object (like UFO's) really fly?

Why is the orbital resonance of the Galilean moons stable?

Does there exist a relationship between elasticity tensor $E_{ijkl}$ and $\int_{\Gamma} F^i z^i d \Gamma$?

Does it make sense to take an infinitesimal volume of shape other than a cube?

What is the advantage of using a polar coordinate system with rotating unit vectors?

Why don't electrons crash into the nuclei they "orbit"?

What rigid body rotation causes rotational viscosity?

Is any artificial degree of freedom caused by the concept of electrical currents?

What is the radiation field of a black body with temperature $T$ translating at speed $v$?

Could sonoluminescence be the result of the Casimir Effect?

What is the radiation field of a black body with temperature $T$ translating at speed $v$?

Direction of polarization in dielectrics

Is fixing the gauge the same thing as performing a Lorentz transformation?

Does the kinetic energy of an individual water molecule (vapor) decrease as it goes up in the atmosphere?

Schumann resonance frequency

How can zero point energy vacuum be Lorentz invariant?