this post was submitted on 06 May 2024

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385

Checkmate, science (lemmy.world)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 6 points 3 months ago

It will work fine of your intention is to secure the arm so that it won't dangle when you drive

[–] [email protected] 6 points 3 months ago* (last edited 3 months ago) (1 children)

Mythbusters did a similar one using a fan and a sailboat. The boat moved. Backwards.

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[–] [email protected] 6 points 3 months ago* (last edited 3 months ago)

For the same reason why this device does not go left by the metal slab pulling the magnet to the left

[–] [email protected] 5 points 3 months ago (1 children)

Jim Knopf und Lukas der Lokomotivführer (Jim Button and Lukas the Engine Driver) dit it first:

[–] [email protected] 3 points 3 months ago (2 children)

They even got one step behound: The two rocks you see in the drawing are actually a broken up magnet into it's north pole and south pole, so it's only magnetic when they connect the both with a metal rod. Genius. (ofc that's EXACTLY how magnets work)

[–] [email protected] 4 points 3 months ago

There are magnetic monopoles, but only in quantum physics.

[–] [email protected] 2 points 3 months ago* (last edited 3 months ago)

I also find it funny how i got introduced to the troll physics meme 20 years before it was called that, as a small child back in the 90s

[–] [email protected] 5 points 3 months ago

Magneto was right!

[–] [email protected] 4 points 3 months ago

Obviously, because they don't want us to know this. Duh.

[–] [email protected] 4 points 3 months ago

I think that only works on steam trains

[–] [email protected] 4 points 3 months ago (1 children)

It's basically the same problem as the sailboat with a fan.

[–] [email protected] 2 points 3 months ago (4 children)

What are you trying to imply?

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[–] [email protected] 2 points 3 months ago (4 children)

Me sighing as people akshually comment explaining the obvious in a meme sub. 😅

[–] [email protected] 7 points 3 months ago (4 children)

You realize these are all incorrect right?

[–] [email protected] 1 points 3 months ago (3 children)

Please explain the correct answer

[–] [email protected] 3 points 3 months ago* (last edited 3 months ago)

They are connected in the same system. What the truck is doing is the same thing as you holding two magnets together, you won't go anywhere because everything is self contained.

Edit: this is probably not a very accurate explanation but it's the way I understand it.

[–] [email protected] 2 points 3 months ago

If the arm can bend, the car and the magnet could move towards each other until they come together, moving the car at max a few centimeters. If the arm doesn't bend, the car is pulled as much forward as the magnet, and therefore the arm and in turn the car itself, is pulled forward, leaving the whole system stationary.

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[–] [email protected] 3 points 3 months ago* (last edited 3 months ago) (3 children)

There are no stupid questions

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[–] therealjcdenton 2 points 3 months ago

You moron, that would make the car flip, you need to attach it to the back of your car horizontally

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