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Hypothetical situation in which, for simplification, only some physical aspects are considered in order to further understand or reveal contradictions between the laws governing them.

1 vote
1 answer
90 views

Who does all the calculation in Archimedes Principle? [closed]

Let's do an experiment. In the first half of the experiment, you ask some geometers to determine the volume of a pineapple. They would model the 3D shape of the pineapple, which is a pretty tricky tas …
15 votes
4 answers
1k views

Can you "rewind" sound messages by going supersonic? [duplicate]

I was having a discussion with a friend about supersonic flights. It was then when he proposed an idea on an interesting experiment that can be done during a supersonic flight. The experiment goes l …
3 votes
1 answer
145 views

Can you short out eddy currents using opposing magnetic fields?

Suppose you put a varying magnetic field source on one side of a thin metal sheet. You would get eddy currents in the corresponding direction. Now you take another similar source and place it exactly …