User HolgerFiedler

21 votes

Can light continue without a light source?

answered Nov 30, 2017 at 4:48

13 votes

How and why do accelerating charges radiate electromagnetic radiation?

answered Feb 10, 2017 at 13:06

12 votes

Why can adding more polarization filters increase the amount of light that goes through them?

answered Oct 24, 2016 at 5:08

8 votes

Why are longwave radio towers so tall?

answered Dec 23, 2018 at 8:08

7 votes

Why exactly does diffraction occur?

answered Dec 3, 2018 at 20:11

6 votes

Accepted

Why is the quantum Venn diagram paradox considered a paradox?

answered Sep 13, 2017 at 21:32

6 votes

Does electron absorb energy?

answered Jul 27, 2016 at 17:58

6 votes

reproducing double-slit experiment with sunlight

answered Oct 16, 2015 at 15:46

6 votes

Why do bullets shoot through water but not through sand?

answered Feb 28, 2021 at 6:32

6 votes

Why does magnetic force only act on moving charges?

answered Feb 23, 2023 at 5:29

5 votes

Can we cool Earth by shooting powerful lasers into space?

answered Jul 11, 2021 at 3:58

5 votes

How do antennas generate photons?

answered Oct 16, 2017 at 8:21

5 votes

Why do water drops form spheres in space?

answered Nov 23, 2018 at 17:45

4 votes

Why don't marbles naturally arrange themselves like a crystal?

answered Nov 25, 2018 at 7:13

4 votes

Is rotation absolute?

answered Jan 20, 2019 at 7:38

4 votes

The Corbino effect

answered Apr 16, 2017 at 18:42

4 votes

Why can't electrons fall into the nucleus?

answered Sep 13, 2014 at 4:17

4 votes

Does a Faraday cage block outgoing signals?

answered Jul 24, 2016 at 17:03

4 votes

Accepted

Entangled Photons Spin Switch?

answered Oct 23, 2016 at 6:51

4 votes

Electromagnetic radiation diagram

answered Jul 26, 2023 at 3:52

3 votes

Accepted

How do permanent magnets work? How can they be permanently magnetized and mantain their magnetism? How do they differ from a temporary magnet?

answered Sep 10, 2023 at 3:28

3 votes

Is intrinsic spin a quantum or/and a relativistic phenomenon?

answered Jun 20 at 3:27

3 votes

How does Huygens Principle explain interference?

answered Jun 12, 2020 at 5:15

3 votes

Why is the direction of cross products of two vectors perpendicular to the plane?

answered Oct 18, 2020 at 17:32

3 votes

Wave and particle nature of light during detection in a single-photons double slit experiment

answered Oct 19, 2020 at 5:13

3 votes

Accepted

How electromagnetic wave was related to visible light?

answered Oct 17, 2020 at 13:26

3 votes

Why do magnetic fields induce current in wires when the electrons in the wires aren't moving?

answered Jun 14, 2023 at 4:12

3 votes

Emission of photon from quantum jump

answered Oct 23, 2022 at 5:40

3 votes

Einstein's return to aether

answered Dec 5, 2021 at 5:35

3 votes

How and why a magnetic field is produced?

answered Oct 20, 2016 at 15:44

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995 Answers

Can light continue without a light source?

How and why do accelerating charges radiate electromagnetic radiation?

Why can adding more polarization filters increase the amount of light that goes through them?

Why are longwave radio towers so tall?

Why exactly does diffraction occur?

Why is the quantum Venn diagram paradox considered a paradox?

Does electron absorb energy?

reproducing double-slit experiment with sunlight

Why do bullets shoot through water but not through sand?

Why does magnetic force only act on moving charges?

Can we cool Earth by shooting powerful lasers into space?

How do antennas generate photons?

Why do water drops form spheres in space?

Why don't marbles naturally arrange themselves like a crystal?

Is rotation absolute?

The Corbino effect

Why can't electrons fall into the nucleus?

Does a Faraday cage block outgoing signals?

Entangled Photons Spin Switch?

Electromagnetic radiation diagram

How do permanent magnets work? How can they be permanently magnetized and mantain their magnetism? How do they differ from a temporary magnet?

Is intrinsic spin a quantum or/and a relativistic phenomenon?

How does Huygens Principle explain interference?

Why is the direction of cross products of two vectors perpendicular to the plane?

Wave and particle nature of light during detection in a single-photons double slit experiment

How electromagnetic wave was related to visible light?

Why do magnetic fields induce current in wires when the electrons in the wires aren't moving?

Emission of photon from quantum jump

Einstein's return to aether

How and why a magnetic field is produced?