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Everybody knows that meme where you have a magnet in front of a car, but is there any way magnets could be used to achieve this? Also can you please explain (I'm not being ironic here) me why the magnets don't work in the first example, I flunked physics.
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Nov 14, 2022 16:55
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Elon Musk tried this idea and you know how that worked OP................................
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Nov 14, 2022 16:56
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EorayMel posted:Elon Musk tried this idea and you know how that worked OP................................ ...He did?
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Nov 14, 2022 16:57
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Big Scary Owl posted:...He did? 
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Nov 14, 2022 17:00
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But can someone explain me the physics on the car and magnets thing? Is there a variation of it that could work?
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Nov 14, 2022 17:20
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Back in the 50s a scientist fed a bunch of metal pellets to a roadrunner, then held a large U-shaped magnet in his hands while wearing roller skates. There's no reason that we couldn't scale this up and create a clean, efficient, powerful mode of mass transportation for this. We just need to watch out for the rare situation where the roadrunner paints a tunnel on a wall and we crash into it.
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Nov 14, 2022 17:25
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Big Scary Owl posted:Everybody knows that meme where you have a magnet in front of a car, but is there any way magnets could be used to achieve this? Also can you please explain (I'm not being ironic here) me why the magnets don't work in the first example, I flunked physics. The trick is, you actually want the magnet behind the car, and then another magnet in the rear bumper in the opposite polarity, and you use magnetic repulsion to push the car forward. The only flaw is that the magnet you're dragging on the ground behind the car loses too much energy to friction. They can make it work in winter on icy surfaces but under normal weather conditions the magnetic propulsion just isn't efficient enough to overcome drag and the magnet just acts as an anchor. They're working on a self-lubricating system so that the magnet can glide smoothly along the slick road surface.
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Nov 14, 2022 17:25
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They already got this magnet drive technology on roller coasters OP.
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Nov 14, 2022 17:30
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Big Scary Owl posted:Everybody knows that meme where you have a magnet in front of a car, but is there any way magnets could be used to achieve this? Also can you please explain (I'm not being ironic here) me why the magnets don't work in the first example, I flunked physics. Natures abhors a vacuum. If that doesn't explain it then that's all I know about physics, sorry.
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Nov 14, 2022 17:35
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Newton's third law, OP. The car and magnet just get pulled towards each other.
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Nov 14, 2022 17:56
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GetDunked posted:Newton's third law, OP. The car and magnet just get pulled towards each other. There weren't cars around in Newton's time
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Nov 14, 2022 18:55
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We don’t even know how magnets work op, how the HELL are we gonna drive a car with em?
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Nov 14, 2022 19:37
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A Fancy Hat posted:Back in the 50s a scientist fed a bunch of metal pellets to a roadrunner, then held a large U-shaped magnet in his hands while wearing roller skates. Have already eaten a lot of heavy metals in my lifetime, always down for more.
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Nov 14, 2022 19:51
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Electric motors are generally powered by magnets OP. When current flows through a wire it creates a magnetic field. With alternating current this swapping back in forth between the direction the field can be used to force something to rotate and that rotating thing can drive something like a fan, or presumably a car. I dont know what meme you're talking about but I presume something like dangling a magnet in front of a car to constantly pull you forwards like a cartoon. The car is being pulled towards the magnet yes, but the magnet is also being pulled towards the car, and since they are all part of the same rigid system the net overall pull is neutral, the car doesn't move. Same reason you can't literally pull yourself up by your bootstraps.
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Nov 14, 2022 20:40
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https://en.wikipedia.org/wiki/Maglev
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Nov 14, 2022 20:41
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ArbitraryC posted:Electric motors are generally powered by magnets OP. When current flows through a wire it creates a magnetic field. With alternating current this swapping back in forth between the direction the field can be used to force something to rotate and that rotating thing can drive something like a fan, or presumably a car. Just put a car with a magnet in back in front of the car you want to drive. Bing bong so simple pay me my engineer salary
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Nov 14, 2022 20:52
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How do you think an O2 combines with a C to make CO2 and a big bang? loving magnets. Electromagnetism is like half of the universe and nearly everything you see day to day. If someone asks why or what, you can always say magnets and no one except giant huge nerds no one listens to can call you out.
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Nov 14, 2022 20:58
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Maybe we could do something with space travel involving magnets...? I dunno There's this great video that explains the physics of it in detail: https://www.youtube.com/watch?v=XjwF-STGtfE I mean if made a train like that, we could probably do it with cars too. Or maybe something in space.
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Nov 14, 2022 21:26
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Magnets, how do they work?! Nobody knows. Maybe you could use one of those MRI magnets as a tunnel to magnetically accelerate and launch vehicles on direct paths to their destination
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Nov 14, 2022 21:47
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Big Scary Owl posted:Everybody knows that meme where you have a magnet in front of a car, but is there any way magnets could be used to achieve this? Also can you please explain (I'm not being ironic here) me why the magnets don't work in the first example, I flunked physics. Can you stand inside a car and push on it to make it move? It's the exact same thing, but in reverse.
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Nov 14, 2022 22:36
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Aramis posted:Can you stand inside a car and push on it to make it move? It's the exact same thing, but in reverse. I can, but I'm really strong
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Nov 14, 2022 22:58
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What if you have a magnet in front of the car then you push the car down a hill.
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Nov 14, 2022 23:08
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Attach cars to hot air balloons at low altitude and move them via a goat with a powerful magnet attached to its back running on the ground
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Nov 14, 2022 23:34
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You can already move cars with magnets
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Nov 15, 2022 00:00
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Colonel Cancer posted:Magnets, how do they work?! Nobody knows. Maybe you could use one of those MRI magnets as a tunnel to magnetically accelerate and launch vehicles on direct paths to their destination So hyperloop, if hyperloop wasn’t a scam to destroy public transport in California.
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Nov 15, 2022 00:07
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if the world trade centers were made of magnets 9/11 would have been a different story
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Nov 15, 2022 00:11
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A car powered by u being ugly!!!
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Nov 15, 2022 00:47
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Bargearse posted:So hyperloop, if hyperloop wasn’t a scam to destroy public transport in California. I was thinking more gauss rifle shot thru the air at the target location
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Nov 15, 2022 01:20
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Not sure what you mean about the "magnet in front of a car" model, OP. You could put a magnet in front of a car that's powerful enough to pull it forward, but then what? It would take just as much or more force to pull it back. Nothing is really accomplished here. It's like asking if we can use gravity to power cars.
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Nov 15, 2022 01:27
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Devils Affricate posted:Not sure what you mean about the "magnet in front of a car" model, OP. You could put a magnet in front of a car that's powerful enough to pull it forward, but then what? It would take just as much or more force to pull it back. Nothing is really accomplished here. It's like asking if we can use gravity to power cars. Just use a magnet to deflect the gravity. 
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Nov 15, 2022 01:36
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Gravity can power cars directly down, gravity cars work
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Nov 15, 2022 02:29
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I think the OP might be a bit of a dum-dum.
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Nov 15, 2022 04:56
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Alucard posted:You can already move cars with magnets are u fuckign kidding me. that's obviously and clearly a claw
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Nov 15, 2022 05:44
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Devils Affricate posted:It's like asking if we can use gravity to power cars. this is called a Saopbox Racer or pehrasp a Sled in its unwheeled variant, fyi
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Nov 15, 2022 05:47
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Or a train that can generate power from gravity by rolling down hill
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Nov 15, 2022 05:48
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Or a common household stairwell. Give someone a push and see them effortlessly clear dozens of feet powered by nothing but gravity.
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Nov 15, 2022 05:49
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nice try, but a train nor a person are cars. off topic
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Nov 15, 2022 05:50
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All I know about magnets is that story where some dipshit used those clacky spherical ones as anal beads and ended up in the hospital.
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Nov 15, 2022 05:57
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hot cocoa on the couch posted:nice try, but a train nor a person are cars. off topic A train is a collection of cars chained together 
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Nov 15, 2022 06:00
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| # ? Apr 29, 2024 18:30 |
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electric motors run on the force of electromagnetism but i'm sure you meant something more stupid didn't you op
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Nov 15, 2022 06:02
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