It's a question that's been asked before: https://duckduckgo.com/?q=icp+magnets
With the jack it was probably going inadvertently going over-center on a fulcrum point.
I have a better handle on electromagnets than permanent magnets. Look for History and Theory of Electricity (aka The Theory of Anti-relativity) by Eric P. Dollard on Youtube. It's 3 1/2 hours.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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