this post was submitted on 06 May 2024
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Science Memes

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[–] iAvicenna@lemmy.world 6 points 6 months ago* (last edited 6 months ago)

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

[–] Zehzin@lemmy.world 6 points 6 months ago* (last edited 6 months ago) (1 children)

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

[–] A_Chilean_Cyborg@feddit.cl 1 points 6 months ago* (last edited 6 months ago)

That one worked because it was just an inneficient way of pointing the fan backwards, the center of mass, as the average of the position of all the mass doesn't move from inside forces, just outside ones, so for the car to move the mass of the magnet and arm would meet to move in relation to the car, because they can't, the car doesn't move too.

Wich is basically just a long way of saying "Newton laws".

[–] Michal@programming.dev 6 points 6 months ago

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

[–] Matombo@lemmy.world 5 points 6 months ago (1 children)

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

[–] Matombo@lemmy.world 3 points 6 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)

[–] MonkderDritte@feddit.de 4 points 6 months ago

There are magnetic monopoles, but only in quantum physics.

[–] Matombo@lemmy.world 2 points 6 months ago* (last edited 6 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

[–] NigelFrobisher@aussie.zone 5 points 6 months ago

Magneto was right!

[–] Diplomjodler3@lemmy.world 4 points 6 months ago

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

[–] Maultasche@lemmy.world 4 points 6 months ago

I think that only works on steam trains

[–] mihor@lemmy.ml 4 points 6 months ago (1 children)

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

[–] TachyonTele@lemm.ee 2 points 6 months ago (4 children)

What are you trying to imply?

[–] mihor@lemmy.ml 1 points 6 months ago

Just my observation that it's the same kind of problem and that the effects cancel each other out.

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[–] Lemminary@lemmy.world 3 points 6 months ago (11 children)

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

[–] lowleveldata@programming.dev 3 points 6 months ago* (last edited 6 months ago) (3 children)

There are no stupid questions

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[–] therealjcdenton@lemmy.zip 2 points 6 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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