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Because it makes the vehicle too long to park in the average garage or driveway.
Finally, an answer that makes sense.
Fun at partys guy: While the car will actually experience a force torwards the magnet, so will the magnet experience an equal amount of force torwards tha car. Given the connection between the car and the magnet is stiff, these opposing forces will stress the connection and create a reactive force in there according to Newtens 3rd law, ultimatly canseling the forces out and neither the car nor the magnet will move.
If you however remove the stiff connection, the car and the magnet will move torwards each other untill they meet.
what if you just attach a second magnet to the car so that it pulls the first magnet forwards?
Then you have the same mechanism used in toy wood trains.
How about if you launch a huge magnet well above escape velocity and remotely anchor a space elevator made from a ferromagnetic material to it but the space elevator’s weight counteracts its inertia exactly and holds it in place perpetually. Would that work?
Edit: I swear I’m not dumb, I just didn’t think this one through.
It needs to rotate unless it’s a superconductor.
Also a magnet that size would mess up navigation equipment for miles
Give us a chance to practice using our sextant collection tho
gee, you must be fun at parties (/s if it weren’t obvious enough)
Would that be at the hing of the arm? Where would the event horizon or epicenter be of that?
It will, but why do you want the truck to attract the magnet? Are you going to drive backwards everywhere?
This guy gets it
This illustration does not imply that the car is moving. There are no “speed lines” or arrows that would indicate that.
So the illustrated setup would 100% work.
Try pulling yourself by the nose.
I hit 60mph and am like 20 miles from my house. Why would you tell me to do that?
At least you didn’t pull upwards like I did. Glad the ceiling was there or it could’ve been much worse.
Or picking yourself up by your bootstraps.
Or using your bootstraps to pick your nose.
It’s working! I’m moving!
Ow. Now what?
Does it move you?
Not very. I prefer Mozart.
Good old troll physics.
W…wait, why is the troll head missing?!?
Looks like people are (re)discovering troll physics
Tinted windows.
I built a scale model to prove the haters wrong. I had to tilt the platform a little for it to overcome friction, but once I did, the car rolled forward until it hit a wall.
Less fun at parties guy: While the diagram leaves it somewhat unclear as to what precise effect that mechanism is intended to achieve, clearly it involves electromagnetism and thus any proper explanation must begin with a full description of quantum field theory…
What’s funny is this would actually work if you just pointed the magnet at other people’s cars.
“this would work if you did something completely different” lmao
Am I wrong? ;)
Curses, you’ve got a point…!!
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.
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?
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
Being stuck to the car in front of you is more efficient for traffic anyways
Maybe we could make a really long car
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?
That’s some crazy Elon musk idea, making a brand new mode of transport
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
Genius
Because both of the magnet’s poles are pointed at the car and the attraction and repulsion are canceling each other out.
The mount is holding the truck back. You need a wireless magnet.
This is actually kind of how electric motors work as the rotor chases a magnetic field forever kept out of reach by the stator, and you can’t tell me otherwise.
The difference is, that the rotor is allowed to move, and they’re switching coils in the stator to keep it going.
In this system, the force pulling the magnet towards the truck is being negated by the arm fixed to the truck.
If you placed a bunch of electromagnets on the guard rail, that would be more like a motor (technically, a linear motor,)
thatsthejoke.jpg
It’s because the magnet is in the vertical position, it needs to be in the horizontal position to properly complete the circuit
It’s actually a common misconception that magnets always attract metal. This misconception was popularized by people joking that magnets are magic. In reality, magnets attract because they have magnetions in them. These magnetions allow them to attract things like metal but a little bit is used up each time. Eventually once the magnet’s magnetions have been depleted, the magnet turns back into a newt and goes home to recharge.
Can you recharge it
Science is trying to find a way, but for now you need a witch/wizard to recharge it.
because the truck is self-propelled, and it can only go as fast as it takes itself. Therefore the magnet, which is attached to the truck, can only go as fast as the truck takes itself.
Some guy got hit by an apple and went on to ruin the fun for everyone, jerk.
