Science Memes

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Checkmate, science (lemmy.world)

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

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[–] [email protected] 27 points 3 months ago (3 children)

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

[–] [email protected] 9 points 3 months ago (1 children)

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

[–] [email protected] 5 points 3 months ago (2 children)

Am I wrong? ;)

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

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

[–] [email protected] 2 points 3 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.

[–] [email protected] 1 points 3 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 3 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

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

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

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

Maybe we could make a really long car

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

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

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

[–] [email protected] 1 points 3 months ago

Genius