this post was submitted on 16 Mar 2025
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Science Memes

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see the joke is that someone else does the work (lemmy.blahaj.zone)
submitted 18 hours ago by [email protected] to c/[email protected]
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[–] [email protected] 20 points 16 hours ago (2 children)

IIRC it depends on the frame of reference. Relative to a magnetic field, the only thing a magnetic force does is changing the velocity direction of affected objects. All work regarding the absolute magnitude of the velocity is zero (no lateral acceleration).

[–] [email protected] 35 points 16 hours ago (2 children)

How fucking smart do you think 5 year olds are?

[–] [email protected] 14 points 16 hours ago

Well, you have a point here.

[–] [email protected] 4 points 15 hours ago

"So the squirrel went "neep! neep! neep!" all the way home."

[–] [email protected] 11 points 15 hours ago (1 children)

When you hold two strong magnets an inch apart, then let them go it looks like they move themselves (add velocity)?

What makes the magnets start moving towards each other from a complete stop?

[–] [email protected] 2 points 13 hours ago

It's the magnets, doing work!