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Mar
7
comment Induction cooker + superconductive pot
This experiment in the video link generates the field by discharging a large capacitor; this is a single huge pulse of current, which in turn causes the dramatic effect. This may not be relevant for the problem at hand.
Mar
7
awarded  Citizen Patrol
Mar
6
awarded  Investor
Feb
15
comment What's the exact gravitational force between spherically symmetric masses?
If you interpret "force between them" as the force that describes the motion of their center of masses, then the point mass description is exact. The hard integral is only required if the questioner wants to model tidal forces on the bodies.
Feb
13
answered Under what condition charges do not flow in closed circuit?
Feb
12
revised Magnitude of the Fourier Transform of White Noise
added section on discrete data.
Feb
12
answered Magnitude of the Fourier Transform of White Noise
Jan
22
awarded  Quorum
Jan
15
comment How does liquid in a ball affect its rotational acceleration down a ramp?
Is this a homework question?
Jan
15
answered How does liquid in a ball affect its rotational acceleration down a ramp?
Jan
4
revised Physical explanation for capacitive circuit
math typesetting of equations
Jan
4
suggested suggested edit on Physical explanation for capacitive circuit
Dec
27
revised Can I survive a free fall using a ramp and a rope?
fixed bullet, removed redundant section
Dec
24
revised How does an electrical field really work?
added 300 characters in body
Dec
24
comment How does an electrical field really work?
@alexraasch I'd say that any "more fundamental" description would get well outside of the question's stated scope, requiring getting into quantum field theory, the gauge symmetry model of forces and so on.
Dec
24
revised How does an electrical field really work?
better link
Dec
24
comment How does an electrical field really work?
If anyone has the corresponding link w/o the ICP references please let me know.
Dec
24
answered How does an electrical field really work?
Dec
18
answered Can I survive a free fall using a ramp and a rope?
Dec
11
awarded  Commentator