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Gilbert
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42
Super Fast Message
Oct 19, 2017
42
Why does my beveled mirror make triplicate "ghosts"?
Sep 11, 2017
30
Are there classical physics phenomena that remain unexplained?
Jun 20, 2025
30
If you were invisible, would you also be cold?
Dec 7, 2021
27
Why does the wave velocity of EM signals in a wire depend on the insulator's permittivity?
Jan 26, 2022
24
What's the physics behind XKCD #2027 (time between lightning flash and radio wave burst)?
Aug 1, 2018
24
How can you measure the zero resistance in a superconductor?
Jul 14, 2021
24
Why is the potential energy of a spring the same when it is compressed and stretched?
Sep 6, 2017
22
Reversed First Joule's Law : heating a resistor produce voltage?
Sep 8, 2017
21
Why Is an Inhomogenous Magnetic Field Used in the Stern Gerlach Experiment?
Nov 26, 2020

Top Meta posts

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The “experience of a photon” question
6
Why do physicists say a proposed perpetual motion machine won't work without even looking at it?

Top network posts

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14
What good is my paper if the code is not open source?
13
What is the liftoff problem in wires in integrated circuit (IC) industry?
12
I've never been an olympiad-winning excellent student; is there a chance for me in academia?
8
What should I do about slight human errors in my data?
6
Is it normal that my phd supervisor raises new questions for me to revise every time after reviewing my manuscript?