Science Memes

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Checkmate, science (lemmy.world)

submitted 6 months ago by ickplant to c/[email protected]

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[–] Feathercrown 27 points 6 months ago (3 children)

What's funny is this would actually work if you just pointed the magnet at other people's cars.

[–] drislands 9 points 6 months ago (1 children)

"this would work if you did something completely different" lmao

[–] Feathercrown 5 points 6 months ago (2 children)

Am I wrong? ;)

[–] drislands 4 points 6 months ago

Curses, you've got a point...!!

[–] [email protected] 2 points 6 months ago (1 children)

Depends on what we consider wrong. Could you pull a car that way? Theoretically, yes. Could you save energy that way? No, because the car driving in front would have to do extra work to overcome the magnet pulling it towards the car behind. You can't cheat the first law of thermodynamics.

[–] Feathercrown 1 points 6 months ago

But that's not my energy, the guy in front now has to pay for me to be his trailer.

Also unmeme for a second, wasn't there news that we were able to harvest energy from brownian motion about a year ago? What happened with that?

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

It would only work if you manage to keep the car at an extremely precise distance from the car in front. If you're off by tiny tiny amounts, you'll either lose the magnetic attraction, and stop, or you'd started getting closer fast until you'd be stuck to the car in front of you

[–] Feathercrown 4 points 6 months ago (1 children)

Being stuck to the car in front of you is more efficient for traffic anyways

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

Maybe we could make a really long car

[–] Feathercrown 4 points 6 months ago (1 children)

We could chain them together and make the front car really powerful. The other cars wouldn't even need engines!

It would get kinda hard to control though. Maybe some sort of track system could keep it steady?

[–] [email protected] 1 points 6 months ago

That's some crazy Elon musk idea, making a brand new mode of transport

[–] Rakonat 2 points 6 months ago* (last edited 6 months ago) (1 children)

Use two magnets of opposing polarity, the stronger magnet should be on the bumper to push the boom forward, and drag the truck with it. /s

[–] Feathercrown 1 points 6 months ago

Genius