this post was submitted on 20 Aug 2025
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Science Memes

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top 29 comments
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[–] tetris11@lemmy.ml 109 points 1 week ago* (last edited 1 week ago) (3 children)

The magnet on the bonnet is pulling the car forwards as much as the magnet hanging on the wire is pulling backwards towards the car, and since they share the same root object (the car) the net motion is zero.

If either of those magnets were rooted on the ground, the car would move (albeit not very far)

[–] Bytemeister@lemmy.world 99 points 1 week ago (1 children)

This reminds me of Bender putting his arms back on.

[–] SubArcticTundra@lemmy.ml 22 points 1 week ago

I love cartoon physics

[–] guy@piefed.social 22 points 1 week ago

Dawn, didn't knew you could do that with lasers. Brilliant

[–] perishthethought@piefed.social 18 points 1 week ago

She blinded me with sciiiiiience!

[–] Technus@lemmy.zip 53 points 1 week ago (1 children)

We used to make these all the time as kids. You need a second pair of magnets in push configuration on the back for this to work.

[–] fartographer@lemmy.world 20 points 1 week ago (1 children)

Don't forget the spark plug wrapped in wire that's been taped to a light bulb

[–] bryndos@fedia.io 14 points 1 week ago (1 children)

With the right electric field you can generate (a small amount of) thrust our of ions in air flowing over a charged plane.

One of the myth-busters "anti-gravity" devices they tested was actually (very weak) a static electric ion thruster.

Pretty cool - but it did need electric power input.

[–] NatakuNox@lemmy.world 4 points 1 week ago (1 children)

What about the 4 magnets on the sides for turning!?

[–] Eh_I@lemmy.world 4 points 1 week ago

You're going to need a three-way monopole electromagnet if you ever want to reverse.

[–] Codpiece@feddit.uk 42 points 1 week ago* (last edited 1 week ago) (1 children)

You need a stronger magnet at the front obviously.

Or it’s a toy American truck and they’re metric magnets. Swap them for federal units.

[–] jaybone@lemmy.zip 14 points 1 week ago (1 children)

Water destroys magnets. Thank you for your attention to this important matter.

[–] Whats_your_reasoning@lemmy.world 4 points 1 week ago (1 children)

Well duh. Why else would the magnetic record on the sea floor flip back and forth?

[–] MagicShel@lemmy.zip 6 points 1 week ago (1 children)

So you can hear the 'B' side.

[–] shittydwarf@sh.itjust.works 40 points 1 week ago

You gotta release the parking brake

[–] SapphironZA@sh.itjust.works 32 points 1 week ago

The handbrake is still on.

[–] Peanutbjelly@sopuli.xyz 17 points 1 week ago

Just gotta pull yourself up by your bootstraps and figure out out like i did.

[–] nexguy@lemmy.world 17 points 1 week ago

I think it is working. Exactly as designed.

[–] ShaggySnacks@lemmy.myserv.one 10 points 1 week ago

Fucking magnets, how do they work?

[–] cmgvd3lw@discuss.tchncs.de 7 points 1 week ago

You have too pee on the truck bed

[–] Eh_I@lemmy.world 7 points 1 week ago (1 children)
[–] ExtremeUnicorn@feddit.org 2 points 1 week ago

You're pointing to my colleague?

[–] j4k3@lemmy.world 5 points 1 week ago

missing microwave transformer, HHO electrolysis, cellulose, and nitric acid bro... obviously

[–] darklamer@lemmy.dbzer0.com 4 points 1 week ago (1 children)

The magnet dislikes you personally, that's why.

[–] humorlessrepost@lemmy.world 5 points 1 week ago* (last edited 1 week ago)

Far too many people think this is how “energy” and “frequencies” work.

[–] knacht1@lemmy.world 3 points 1 week ago

It used to work till you broke it.

[–] eldavi@lemmy.ml 3 points 1 week ago

reminds me of the videos of that guy who sits in wheeled bucked ostensibly pushing himself with an umbrella and a leaf blower; guy carries a leaf blower, umbrella and bucket around all the time just to make people look at him. lol

[–] apotheotic@beehaw.org 2 points 1 week ago

Rookie mistake, the thing holding the magnet from the back side is also metal so it cancels out