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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
If you were invisible, would you also be cold?
Dec 7, 2021
26
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
20
What is Chirped Pulse Amplification, and why is it important enough to warrant a Nobel Prize?
Oct 8, 2018
19
Why aren't all dielectrics transparent?
May 25, 2018
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The “experience of a photon” question
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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?
5
Specific type of invisible ink