Did you try flipping the magnet over? If you put the two north ends together they’ll repel instead of attract.
Perpetual motion eludes us again.
Submitted 3 weeks ago by The_Picard_Maneuver@lemmy.world to memes@sopuli.xyz
https://lemmy.world/pictrs/image/0414b43f-d913-4155-9ecb-47aba8d32cf3.jpeg
Comments
pennomi@lemmy.world 3 weeks ago
notarobot@lemmy.zip 2 weeks ago
The beauty is that you can make the mental gymnastics to make it work both ways.
If they are opposite, the magnet attracts the car which moves the magnet away creating infinite motion
If they are the same, the magnet is repelled by the car, moving it away, moving the car forward creating infinite motion
You can even do mental tricks to make the contraption go backwards: Opposites: car attacks magnet which moves the car backwards Same: magnet reppels the car which moves the contraption backwards
theUwUhugger@lemmy.world 2 weeks ago
By your though process shouldn’t the car be going backwards?
Diplomjodler3@lemmy.world 3 weeks ago
I tried something like that when I was about ten.
_AutumnMoon_@lemmy.blahaj.zone 2 weeks ago
Because you need to put it on the back and have it repel the truck forward instead of attract it forward obviously
Kolanaki@pawb.social 2 weeks ago
It would work if the repulsion/attraction only went in 1 direction. But since it goes both ways, they just cancel out.
Conversely, the fan version of this idea (fan blowing into a sail) does actually work. But it’s nowhere near as efficient as simply turning the fan away from the sail to push you the normal way.
iAvicenna@lemmy.world 2 weeks ago
Well because there the whole system now becomes the ship+air/water molecules rather than just the ship + you use energy to work the fan which imparts that energy to the air/water molecules.
jnod4@lemmy.ca 2 weeks ago
What if u put the fan in the water?
FooBarrington@lemmy.world 2 weeks ago
There’s oxygen in water, so it could work
psud@aussie.zone 2 weeks ago
You think it would work if one end is a magnet and the other ferrous metal? I’m pretty certain it wouldn’t
Whatever happens there’s no work done as the magnet and it’s partner don’t move relative to each other. There’s force between them, but no movement.
Kolanaki@pawb.social 2 weeks ago
You think it would work if one end is a magnet and the other ferrous metal?
No, because the force of attraction is still working in both directions just not as strongly as it would with two magnets.
mriswith@lemmy.world 2 weeks ago
Yeah, as long as no other energy is put into the system, nothing will happen. Since the two parts are statically attached to the same object, so no additional movement or energy means no effect on the overall object.
This is basically like putting two nails in a piece of wood and stretching a rubber band between them. Nothing will happen without additional steps.
OpenStars@piefed.social 3 weeks ago
Excellent! It is always nice to see people asking questions - the journey towards the answer should prove most enlightening! :-D
xploit@lemmy.world 2 weeks ago
The wire/metal holding it needs to be springy and bobbing back and forth to generate the momentum, duh… Half-assed implementation I say.
MoonRaven@feddit.nl 2 weeks ago
The magnet isn’t strong enough.
cholesterol@lemmy.world 2 weeks ago
You ever talk to someone confused by this, maybe ask them to lightly push the front magnet in the direction it’s trying to go.
TimewornTraveler@lemmy.dbzer0.com 2 weeks ago
I tried that, nothing happened to the picture. why???
beejboytyson@lemmy.world 2 weeks ago
Huh, try putting it next to the phone
dtrain@lemmy.world 2 weeks ago
“No srsly y isnt it?”
theUwUhugger@lemmy.world 2 weeks ago
Why would it? Think about it, would the two magnets gets closer if the wheels started rolling?
KingPorkChop@lemmy.ca 2 weeks ago
Not with that attitude they won’t.
chunes@lemmy.world 2 weeks ago
When I was a kid I came up with this design and was so disappointed when it didn’t work.
southsamurai@sh.itjust.works 3 weeks ago
Need a bigger magnet.
Also, how do they work?
RickyRigatoni@retrolemmy.com 3 weeks ago
they come from the ground so they have gravity in them
Sprondar@lemmy.world 2 weeks ago
Miracles
theUwUhugger@lemmy.world 2 weeks ago
I don’t think the other guy really explained it, its basically an atom with such a subatomic structure where the positive protons are capable of exerting stronger force on one side while the negative electrons on the other! The whole deposit is made up of atoms facing the same way!
reliv3@lemmy.world 2 weeks ago
Oh boy, this is very incorrect, because it sounds like you are attempting to explain magnetism with electrostatic forces. Here is a basic model which separated the difference between the two:
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Electrostatic forces are caused be the electric field. Something produces an electric field simply by having an unbalanced charge. Positive attracts negative, negative repels negative, positive repels positive.
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Magnetic forces are caused by the magnetic field. Something produces a magnetic field by having an unbalanced charge AND is moving.
This is when trying to explain how solid magnets work, we focus on the electrons because electrons are charged particles that are always moving. So they produce both an electric field (being charged) and a magnetic field (being a moving charged system).
Technically the higher post is correct, any solid has the capability of being a magnetic, but this takes an incredible amount of physics work where iron is special. Iron’s electrons are able to easily maintain a synchronous orbit with each other which results in the magnetic force being observable at a macroscopic scale (seeing iron magnets pull on each other). In most other materials, the electrons orbits are chaotic, so even though magnetic fields are still being produced by their electrons, the lack of order results in no magnetic force being observable on the macroscopic scale.
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Ceruleum@lemmy.wtf 2 weeks ago
Needs more magnets and some springs.
UltraMagnus0001@lemmy.world 2 weeks ago
Maybe it needs gas?
AdrianTheFrog@lemmy.world 2 weeks ago
This works in Kerbal Space Program
thisbenzingring@lemmy.sdf.org 2 weeks ago
need two separate vehicles and two magnets, one weaker then the other
so the weaker one will repell the other and it will kick forward moving the other forward and rinse and repeat at a sonic speed
thats gotta generate some kinda motion
msprout@lemmy.world 2 weeks ago
This is basically how a rail cannon works, just with electromagnets that can reverse their polarity.
It’s a powerful way to accelerate anything — I think it’s most famously used in those types of metal roller coasters that start you at a flat-with-the-ground angle, and then just fuckin launch you up a ramp to 45° with electromagnets. The issue is that you need a fuckton of energy to do that.
CarbonIceDragon@pawb.social 2 weeks ago
That’s not how a railgun works, that’s how a coilgun works. Railguns create a loop of electric current that flows into one wire, through the projectile into the other wire, and back down to the starting point again, this configuration creates a force that pushes the projectile down the rails
prole@lemmy.blahaj.zone 2 weeks ago
What we need for true perpetual energy is to just capture that guy Blanka from Street Fighter.
Surely that dude has to eat a lot in order to produce so much energy, no? Or is it just all stored somewhere in his body?
Rooskie91@discuss.online 2 weeks ago
Equal AND opposite
finitebanjo@lemmy.world 2 weeks ago
You could get something like this to generate thrust in theory, just not enough to move an object with this much mass and air resistance. It’s kind of similar to ionic propulsion.
msprout@lemmy.world 2 weeks ago
Young lady, in this house, we obey the laws of thermodynamics!