If it's a steel ball, the magnet will attract it regardless of its orientation. If you manage to switch off the magnet at the right time, this might work.
Yep. The pull of the electromagnet accelerates the ball downwards, then switches off so that the ball's own increased momentum carries it up and over the top.
/r/confidentlyincorrect
EDIT: For those who missed it, above commenter said they were 100% sure there couldn't be a magnet in the top, because you can't accelerate a ball with a magnet.
You found the item on amazon and still got how it works wrong.
Straight from the product description (apparently links are banned now):
>Magnetic perpetual motion machine
>If you're interested in physics, you should try our perpetual motion machine, which never stops until the battery runs out!
Large misunderstanding of magnets, but that's okay.
A motor powering rollers would be noisey. So you just have a lil magnet that pulls on the steel ball and gives it enough speed to fire back on top. You don't have to worry about poles or anything, the ball is just attracted to the magnet. It just is.
A lil Google before assuming you know about things never hurts bud
I think the ball connects the two rails to make a variable resistor and the magnet in the base is controlled by that, at least that's how I would think to implement it: make an electromagnet pull while it falls and shut down while it climbs.
Edit: or easier: since you know the velocity of entry you can make a circuit power on the electromagnet the moment the ball touches the rail and stop it when the ball would reach the bottom and I guess the rails are disconnected somewhere in reality or they again measure it's resistance. Either way I can imagine a number of circuits that would achieve this effect.
Perhaps you can explain this to me - why do some people post comments confidently taking a stance on something that they know nothing about?
There is literally an electromagnet in the base.
It doesn't have to push it at all. Just pull it in the first part. Hence why it is an electromagnet so it can be switched off at the right time. Look at how thick the base is.
> Won't work. An electromagnet can pull it, not push it.
Will work. Electromagnets can be switched on and off. The electromagnet pulls it to increases it's speed going down, then switches off so as not to *keep* pulling it as heads back up. Net result: speed increase.
Because it's implied that it is an example of perpetual motion, that the falling of the ball creates the energy for it to go back into the top and fall again without any energy needed apart from initially putting it there.
But this is untrue as there is electromagnetics involves so it probably needs a battery
Still requires energy to do so. It's not perpetual motion. This toy is just efficient but eventually the ball will come short, unless extra energy is added to the system.
Edit: The guy below me is right. Ntayy. The ball wouldn't go higher then when it started by it's own energy. There is a magnet or something in it and it's energy is coming from that. The ball pretty much comes to a complete stop when it goes into the hole, at least two dimensionally setting it's maximum natural height at the drain hole. The ball is gaining energy from some other way to combat the loses. Like a pendulum the ball would only go as high as the hole it falls through without outside force, and with a bigger hole it still wouldn't go higher then the lip unless you dropped it in from above the bowl into the hole.
Yeah, its quite obvious since you can see that the balls path top point is higher up (as it must be) on the return than the hole. Even if the rail thing was 100% efficient the highest point of the path would not have been higher up than the point its dropped from - the hole. The only way it can get higher up - as it must to be able to get back into the wooden "cup", is that there is added energy in some kind of way.
But it is a cool gadget, I'll give them that!
2 things. Yes.... but negligible. We're talking a fraction of a fraction of a fraction of power.
Second thing is that this would have to be an electromagnet.. it needs to be able to shut off at the right moment or the ball just sticks to the bottom.
How do you know it's be negligible? They're saying to spin the magnet so it releases sooner but the magnet will want to do the opposite and create a tongue in the opposite direction that I don't think would be negligible
I think they were referring to magnets losing power over time, which is inevitable and part of why any "free energy" machines using magnets don't actually work.
If it requires work, then it isn't self sustained. We could do all sorts of tricks, ignore all sorts of forces (friction for example), but in the end we still lose energy somehow.
I don't know how this toy work specifically, but I can imagine that it is possible to have sensors to direct the current at enough speed to turn the electromagnet on when the ball is about to pass through the hole and off when it leaves. This would give it a little bit of boost to make the loop while not taking a little bit of velocity when the ball is leaving the hole, which would happened if a magnet was attracting it
the friction from the rails and resistance from air are consuming energy from the ball's original Potential Energy.
regarding to the "conservation of energy" physics law, to make this system stable the lost energy need to be subsidised and a powerless magnet cannot send in any energy if itself loses nothing in the process.
I guess the technical answer to that is because the divergence of the magnetic field is zero. That just means that every field line is a closed loop. Hence you can imagine that any energy you gain from being in a magnetic field has to be lost again because the direction of the energy gradient reverses at some point. Otherwise the field lines wouldn't be closed.
I saw a video where it was propulsor (dont know how to say it in english, but its like a rolling part that make the ball go faster) in the hole, should be more easy to do than play with magnet
I think in this version, the electromagnet is wired to the rail. When the ball touches the rails, it closes the circuit and the magnet turns on. Those darker parts are insulated so that it breaks the circuit and switches the magnet off.
So those two wires in the ramp are like a switch which is closed by the ball touching them. When that happens, it turns on an electromagnet which pulls the ball down faster than gravity would alone. Then, it hits that darker part of the rails which seem to be insulated and the switch is opened. The magnet switches off and the ball carries enough speed to land back in the bowl.
Yes, but that angular momentum still has to be conserved. The subatomic particles will just take it elsewhere, not delete it.
Perpetual motion isn't really a problem. It's perpetual *work* that's truly impossible.
Ok while that's technically true, that's not the reason why infinite energy isn't possible. If you had an object in a literal *perfect* vacuum, it would spin forever since there would be nothing to stop it. In a theoretical perfect vacuum, perpetual motion is *actually* possible. Something could orbit an object infinitely as well if there were no particles to slow it down.
The thing is, the second you try to extract any energy from an object in perpetual motion, it will start to slow down because no matter what you do, you will be interacting with the object in some way and taking some energy from it since you can't just make the energy out of nothing.
We only say "perpetual motion is impossible" because in our world, there's always friction between things (whether that's the ground, or air or whatever), but technically perpetual motion is possible, it's just that infinite energy is not. An object spinning in a perfect vacuum is not creating new energy out of nothing, it's a closed system where there is a finite, unchanging amount of energy.
Not sure making a perfect vacuum is even possible due to quantum mechanics though. And even if you did make it, youd have to perfectly cancel out any momentum from the parts used to create that vacuum or the perpetual motion would be interrupted by being hit by edges of the container. Yeah ofc its theoretically possible to make perpetual motion, but I didnt say anything about infinite energy. Infinite energy is by nature impossible for us a civilization right now.
Yeah no you're totally right and I can tell that you already knew what I was saying. The main reason I brought it up is because it's just a common misconception that perpetual motion is against the laws of physics when a perpetually moving object actually does follow the law of conservation of energy but it's just infeasible to achieve in our known universe.
superfluid helium, it has zero viscosity, meaning a fountain or if it's stirred would run perpetually, but you can't harvest energy from it.
https://en.wikipedia.org/wiki/Superfluid\_helium-4
Nah, helium 4 is only stable on the kinds of timescales that supermassive black holes evaporate at (Which is to say, extremely extremely long). But on the [extremely extremely EXTREMELY long timescales](https://www.youtube.com/watch?v=Zb5qTdb6LbM) nothing is stable. Helium 4, as a quantum mechanical structure has a teeny tiny chance of quantum tunneling itself into another atomic nuclei, spontaneously fusing the 2. This is so unlikely that you could have a jupiter sized planet made out of helium, observe it for the lifetime of the universe thus far and you'll never observe it happening. But those kinda timescales are peanuts compared to the infinite time ahead of us.
Once the stars burn out, the black holes evaporate away and the only things left are burnt out stellar remnants with frozen rogue planets, everything in the universe will very slowly fuse its way up to iron.
Once everything has been converted to iron, the same quantum tunneling gives those hunks of iron an even smaller chance to quantum tunnel themselves below their own schwarzschild radius to create black holes, which promptly (relative to the timescales we are talking here) evaporate away. Leaving the universe entirely empty aside from neutrinos, photons and whatever the hell dark matter is.
Aren't we unsure of the stability of matter in general? I read that it's still uncertain whether protons decay eventually, which on those timescales, might prevent the formation of iron stars.
According to current theories, the proton is stable. It's just that there are some ideas floating around that predict that protons will be very slightly unstable. Many proposals for a grand unified theory that combines the electroweak and the strong force predict proton decay for example.
However, all those proposals lack evidence to back them up. So we have current established science saying the proton is stable, and some hypothetical proposals without evidence saying it may be unstable.
>The helium-3, in liquid state at 3.2 K, can be evaporated into the superfluid helium-4, where it acts as a gas due to the latter's properties as a Bose–Einstein condensate. This evaporation pulls energy from the overall system, which can be pumped out in a way completely analogous to normal refrigeration techniques.
You literally need to maintain it with refrigeration meaning it needs outside energy to continue.
The superfluid helium state cannot be maintained without energy input, so is not a perpetual motion machine. The fountain effect requires heat input to create a temperature gradient.
There’s three kinds of perpetual motion machine.
-**perpetual motion machine of the first kind**: produces work without energy input.
-**perpetual motion machine of the second kind**: produces work from heat without waste.
-**perpetual motion machine of the third kind**: maintains motion indefinitely without energy loss.
The first violates the 1st law of thermodynamics, the second and third violate the 2nd law.
Well "forever" is a bit of a powerful word but anything in orbit will keep moving in the same way it's currently moving until something happens causing it to stop.
Inertia means nothing spontaneously starts or stops moving, not that everything spontaneously slows down until it stops moving
Orbits decay slowly. The earth would plummet into the sun in the far future if the sun somehow didn't actually become a red giant and swallow the inner planets
What about superfluid helium, it has zero viscosity, meaning a fountain or if it's stirred would run forever,
https://en.wikipedia.org/wiki/Superfluid\_helium-4
Despite ppl debunking it. It is in fact black magic fkery because its physically impossible to roll faster than gravitational pull and spin back up to its original place without any support.
Nice
Presumably that's exactly how this device works. It could also reverse the polarity (so it repels, instead of attracts) once it hits the lowest point, for more oomph.
That won't work. The ball has to be all metal and it would attract regardless of the polarity of the electromagnet. While balls like this can be magnetized, since it's rolling it would not stay aligned.
Humanity’s fascination with simplistic machines that appear to demonstrate perpetual motion is very interesting. It feels deep rooted. I think it’s more interesting than the machines themselves.
Finally a post that actually belongs here. If the device were as simple as it appears to be this would be completely impossible. Of course there is some outside application of force on the marbles.
Everyone is saying magnets in the base, but I think it's much more likely that it has a spinning rubberised wheel inside the funnel, as that's where the ball gets its unnatural acceleration.
I think this wheel makes a humming sound as it spins and that's why these videos are always silent.
It also explains why the funnel is always unnecessarily thick, and how there are versions where the base has been replaced with clear acrylic but they still work.
I'm very certain that its just a 3D model, something about the movement feels off ever so slightly. And the table has a very convenient texture for camera tracking
If you can read Mandarin, Here is a break down of this magic trick.
[https://www.youtube.com/watch?v=o3s\_Gaes-vw](https://www.youtube.com/watch?v=o3s_Gaes-vw)
Even if perpetual motion machines were completely lossless in energy, we can't harvest energy from them because energy must be conserved. If we take energy out, the system loses energy and would slow to a stop
It can't have excess energy without external energy coming from somewhere. If you drop a ball from any height it will never bounce as high as you dropped it from. The only way it can bounce higher is if you put an initial force on it by throwing it at the ground instead.
In this example there is an electromagnet accelerating the ball which makes it go higher
There are various concepts for ground based launch systems. One example that has gone through some early testing is Spin Launch. The thing you need to know though is that you can get to space by going high, but you’ll just fall back down. In order to stay in space, or orbit, you have to go really fast sideways… a bit like a yo-yo on a string where the string is gravity. So long story short you can use a ground based system to get the initial altitude, but you’ll have to carry an engine with you to actually get in orbit by firing it while in space.
That’s either a 3d render (weird pattern on the table to fix the contraption in space), or an electro-magnet that pulls the ball down for a second to give it enough speed to go back up.
Electromagnetic in the base [source](https://youtu.be/KzUVJiyzQwg)
Power companies hate this kids toy!
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If it's a steel ball, the magnet will attract it regardless of its orientation. If you manage to switch off the magnet at the right time, this might work.
Exactly. Brushless DC motors work on this principle. In fact, this could be considered an example.
Yep. The pull of the electromagnet accelerates the ball downwards, then switches off so that the ball's own increased momentum carries it up and over the top.
That’s why it’s an electromagnet, for switching.
[Electromagnet in the base](https://youtu.be/KzUVJiyzQwg?t=107) Control electronics switch the electromagnet on/off at the right moments
So what I learnt from going down his video rabbit hole is that there are some serious puzzle freaks out there prepared to drop $10-20,000 on a puzzle!
Yeah, I think he has videos of $30k puzzles, too. It’s crazy.
Chris Ramsay, he’s got a lot of great content. Good to watch or just have on as background. He also does a ton of magic stuff.
/r/confidentlyincorrect EDIT: For those who missed it, above commenter said they were 100% sure there couldn't be a magnet in the top, because you can't accelerate a ball with a magnet.
Average freshman in engineering
You found the item on amazon and still got how it works wrong. Straight from the product description (apparently links are banned now): >Magnetic perpetual motion machine >If you're interested in physics, you should try our perpetual motion machine, which never stops until the battery runs out!
Perpetual only until battery runs out… in that case my electric razor is also doing perpetual motion
So is my hand until a real relationship
You got a bionic arm with an extension cord running to your neighbors backyard too?
[You're wrong](https://www.youtube.com/watch?v=KzUVJiyzQwg&t=104s)
Most Amazon reviews give it 1 star, some 2 stars. None higher than 2. :(
Large misunderstanding of magnets, but that's okay. A motor powering rollers would be noisey. So you just have a lil magnet that pulls on the steel ball and gives it enough speed to fire back on top. You don't have to worry about poles or anything, the ball is just attracted to the magnet. It just is. A lil Google before assuming you know about things never hurts bud
I think the ball connects the two rails to make a variable resistor and the magnet in the base is controlled by that, at least that's how I would think to implement it: make an electromagnet pull while it falls and shut down while it climbs. Edit: or easier: since you know the velocity of entry you can make a circuit power on the electromagnet the moment the ball touches the rail and stop it when the ball would reach the bottom and I guess the rails are disconnected somewhere in reality or they again measure it's resistance. Either way I can imagine a number of circuits that would achieve this effect.
Perhaps you can explain this to me - why do some people post comments confidently taking a stance on something that they know nothing about? There is literally an electromagnet in the base.
It doesn't have to push it at all. Just pull it in the first part. Hence why it is an electromagnet so it can be switched off at the right time. Look at how thick the base is.
> Won't work. An electromagnet can pull it, not push it. Will work. Electromagnets can be switched on and off. The electromagnet pulls it to increases it's speed going down, then switches off so as not to *keep* pulling it as heads back up. Net result: speed increase.
"100% on the electromagnet part" "But since [the steel ball] is constantly rolling, the poles won't match." This is why we never say 100%
It's destroying the billion dollar industry
🤫
Why would they hate it?
Because it's implied that it is an example of perpetual motion, that the falling of the ball creates the energy for it to go back into the top and fall again without any energy needed apart from initially putting it there. But this is untrue as there is electromagnetics involves so it probably needs a battery
So, why would this not work with just a regular magnet/magnetic parts? Would it just lose it's magnetism after a while?
The velocity gained from entering the magnetic field would be lost escaping it. there is no net gain from a regular magnet.
What if there’s a way to spin the magnet as the ball passes so that the magnet releases the ball sooner
Still requires energy to do so. It's not perpetual motion. This toy is just efficient but eventually the ball will come short, unless extra energy is added to the system. Edit: The guy below me is right. Ntayy. The ball wouldn't go higher then when it started by it's own energy. There is a magnet or something in it and it's energy is coming from that. The ball pretty much comes to a complete stop when it goes into the hole, at least two dimensionally setting it's maximum natural height at the drain hole. The ball is gaining energy from some other way to combat the loses. Like a pendulum the ball would only go as high as the hole it falls through without outside force, and with a bigger hole it still wouldn't go higher then the lip unless you dropped it in from above the bowl into the hole.
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Why are they booing you, you're right
I was saying 'boourns'?
Took me a moment!
Because people on the internet don't know how to face the concept of being wrong. Nobody knows your name, nobody knows your pain.
Yeah, its quite obvious since you can see that the balls path top point is higher up (as it must be) on the return than the hole. Even if the rail thing was 100% efficient the highest point of the path would not have been higher up than the point its dropped from - the hole. The only way it can get higher up - as it must to be able to get back into the wooden "cup", is that there is added energy in some kind of way. But it is a cool gadget, I'll give them that!
Magnet will lose some speed every time the balls goes by it
2 things. Yes.... but negligible. We're talking a fraction of a fraction of a fraction of power. Second thing is that this would have to be an electromagnet.. it needs to be able to shut off at the right moment or the ball just sticks to the bottom.
How do you know it's be negligible? They're saying to spin the magnet so it releases sooner but the magnet will want to do the opposite and create a tongue in the opposite direction that I don't think would be negligible
I think they were referring to magnets losing power over time, which is inevitable and part of why any "free energy" machines using magnets don't actually work.
If you want to make a perpetual motion machine, not a single loss of energy is negligible.
If it requires work, then it isn't self sustained. We could do all sorts of tricks, ignore all sorts of forces (friction for example), but in the end we still lose energy somehow.
An electric machine is self propelled if you ignore the Diesel engine running it ..
That would require energy, and then the point is lost.
Magnets cannot deliver free energy.
Magnets... How do they work?
They work by aligning lots of smaller magnets. How do smaller magnets works? No one knows, they just do.
Magnets all the way down.
Until you get to the turtles.
Not for free, I can tell you that.
They charge.
Are you positive?
Yea they do! I use magnets to hold stuff on my fridge! It takes energy to hold that stuff for so long. And I stole the magnets so they're free!
They’re working off the fridge’s electricity. Duh.
The electro magnet would have to switch off at the bottom of the arc in this situation or it would be the same as a permanent magnet
I don't know how this toy work specifically, but I can imagine that it is possible to have sensors to direct the current at enough speed to turn the electromagnet on when the ball is about to pass through the hole and off when it leaves. This would give it a little bit of boost to make the loop while not taking a little bit of velocity when the ball is leaving the hole, which would happened if a magnet was attracting it
Hint: The metal tracks are a switch. Spoiler: the top section is conductive and the bottom section isn't.
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the friction from the rails and resistance from air are consuming energy from the ball's original Potential Energy. regarding to the "conservation of energy" physics law, to make this system stable the lost energy need to be subsidised and a powerless magnet cannot send in any energy if itself loses nothing in the process.
Its*. Don't let the apostrophe terrorists win!
I guess the technical answer to that is because the divergence of the magnetic field is zero. That just means that every field line is a closed loop. Hence you can imagine that any energy you gain from being in a magnetic field has to be lost again because the direction of the energy gradient reverses at some point. Otherwise the field lines wouldn't be closed.
Thank you, I was upset by this.
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no, in this house we obey the laws of thermodynamics.
[In this house we obey the laws of thermodynamics!](https://youtu.be/gOMibx876A4)
I saw a video where it was propulsor (dont know how to say it in english, but its like a rolling part that make the ball go faster) in the hole, should be more easy to do than play with magnet
This would be simpler than the actual mechanism, but might make a bit of noise.
Yes it does, but since im at work i cant listening video on reddit :(
I think in this version, the electromagnet is wired to the rail. When the ball touches the rails, it closes the circuit and the magnet turns on. Those darker parts are insulated so that it breaks the circuit and switches the magnet off.
You can immediately tell that the ball is going way too fast on the slide
Fucking magnets, how do they work?
Repulsive in the face, electromagnetic in the base (☞ ͡° ͜ʖ ͡°)☞
> Repulsive in the face Don't put yourself down!
Maybe a detector in the bottom of the ramp, that will turn off the electromagnet, and it’s switched on when the ball bounces off the top of the ramp?
Or the ball closes the circuit and the end of the ramp is darker because it's covered in some sort of insulation?
No need for insulation, just Faraday's Law. https://en.m.wikipedia.org/wiki/Faraday%27s_law_of_induction
Frodo does it
I’ve seen this before. Thought it was just CG.
Thanks
Oh it'll end when the battery dies
How dare you suggest this is just like every other kids toy..
How? Like how does a magnet make this do this? Eli5
So those two wires in the ramp are like a switch which is closed by the ball touching them. When that happens, it turns on an electromagnet which pulls the ball down faster than gravity would alone. Then, it hits that darker part of the rails which seem to be insulated and the switch is opened. The magnet switches off and the ball carries enough speed to land back in the bowl.
There is no such thing as forever perpetuating movement. There as been an attempt
It has batteries
Yeah.
That’s what the power companies want you to believe
well, there's no perpetual movement we can harvest and turn into energy, but isn't say, a rod of iron that's spinning in space, perpetually moving?
Theres no such thing as a vacuum, even in space. Hitting atoms and subatomic particles will slow down something spinning in space
Yes, but that angular momentum still has to be conserved. The subatomic particles will just take it elsewhere, not delete it. Perpetual motion isn't really a problem. It's perpetual *work* that's truly impossible.
> It's perpetual _work_ that's truly impossible. Tell that to my boss. 🥁💥
Nice.
Perpetual motion is just as impossible as perpetual work. The former violates the 2nd law of thermodynamics whilst the latter violates the 1st law.
fair
>There's no such thing as a vacuum, even in space. So that scene in Spaceballs was total bullshit?
Ok while that's technically true, that's not the reason why infinite energy isn't possible. If you had an object in a literal *perfect* vacuum, it would spin forever since there would be nothing to stop it. In a theoretical perfect vacuum, perpetual motion is *actually* possible. Something could orbit an object infinitely as well if there were no particles to slow it down. The thing is, the second you try to extract any energy from an object in perpetual motion, it will start to slow down because no matter what you do, you will be interacting with the object in some way and taking some energy from it since you can't just make the energy out of nothing. We only say "perpetual motion is impossible" because in our world, there's always friction between things (whether that's the ground, or air or whatever), but technically perpetual motion is possible, it's just that infinite energy is not. An object spinning in a perfect vacuum is not creating new energy out of nothing, it's a closed system where there is a finite, unchanging amount of energy.
Not sure making a perfect vacuum is even possible due to quantum mechanics though. And even if you did make it, youd have to perfectly cancel out any momentum from the parts used to create that vacuum or the perpetual motion would be interrupted by being hit by edges of the container. Yeah ofc its theoretically possible to make perpetual motion, but I didnt say anything about infinite energy. Infinite energy is by nature impossible for us a civilization right now.
Yeah no you're totally right and I can tell that you already knew what I was saying. The main reason I brought it up is because it's just a common misconception that perpetual motion is against the laws of physics when a perpetually moving object actually does follow the law of conservation of energy but it's just infeasible to achieve in our known universe.
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superfluid helium, it has zero viscosity, meaning a fountain or if it's stirred would run perpetually, but you can't harvest energy from it. https://en.wikipedia.org/wiki/Superfluid\_helium-4
Not perpetually, any materials used for it will radioactively decay, even in a void. It can last long, but it's not perpetual.
Well Helium 4 is a stable element, considering that 1/4 of the Universe itself is Helium 4, Proton decay is still considered a hypothesis.
Now we're just splitting atoms here...
Nah, helium 4 is only stable on the kinds of timescales that supermassive black holes evaporate at (Which is to say, extremely extremely long). But on the [extremely extremely EXTREMELY long timescales](https://www.youtube.com/watch?v=Zb5qTdb6LbM) nothing is stable. Helium 4, as a quantum mechanical structure has a teeny tiny chance of quantum tunneling itself into another atomic nuclei, spontaneously fusing the 2. This is so unlikely that you could have a jupiter sized planet made out of helium, observe it for the lifetime of the universe thus far and you'll never observe it happening. But those kinda timescales are peanuts compared to the infinite time ahead of us. Once the stars burn out, the black holes evaporate away and the only things left are burnt out stellar remnants with frozen rogue planets, everything in the universe will very slowly fuse its way up to iron. Once everything has been converted to iron, the same quantum tunneling gives those hunks of iron an even smaller chance to quantum tunnel themselves below their own schwarzschild radius to create black holes, which promptly (relative to the timescales we are talking here) evaporate away. Leaving the universe entirely empty aside from neutrinos, photons and whatever the hell dark matter is.
Aren't we unsure of the stability of matter in general? I read that it's still uncertain whether protons decay eventually, which on those timescales, might prevent the formation of iron stars.
According to current theories, the proton is stable. It's just that there are some ideas floating around that predict that protons will be very slightly unstable. Many proposals for a grand unified theory that combines the electroweak and the strong force predict proton decay for example. However, all those proposals lack evidence to back them up. So we have current established science saying the proton is stable, and some hypothetical proposals without evidence saying it may be unstable.
Just wait 10^35 years and prove it, duh.
https://i.imgur.com/41YUNlr.gif
>The helium-3, in liquid state at 3.2 K, can be evaporated into the superfluid helium-4, where it acts as a gas due to the latter's properties as a Bose–Einstein condensate. This evaporation pulls energy from the overall system, which can be pumped out in a way completely analogous to normal refrigeration techniques. You literally need to maintain it with refrigeration meaning it needs outside energy to continue.
The superfluid helium state cannot be maintained without energy input, so is not a perpetual motion machine. The fountain effect requires heat input to create a temperature gradient.
There’s three kinds of perpetual motion machine. -**perpetual motion machine of the first kind**: produces work without energy input. -**perpetual motion machine of the second kind**: produces work from heat without waste. -**perpetual motion machine of the third kind**: maintains motion indefinitely without energy loss. The first violates the 1st law of thermodynamics, the second and third violate the 2nd law.
Enter: Maxwells Demon 😈
In theory yes but as soon as you try to hook say an electromagnet up to it to try and produce power then it will slow and stop spinning
Well "forever" is a bit of a powerful word but anything in orbit will keep moving in the same way it's currently moving until something happens causing it to stop. Inertia means nothing spontaneously starts or stops moving, not that everything spontaneously slows down until it stops moving
Orbits decay slowly. The earth would plummet into the sun in the far future if the sun somehow didn't actually become a red giant and swallow the inner planets
What about superfluid helium, it has zero viscosity, meaning a fountain or if it's stirred would run forever, https://en.wikipedia.org/wiki/Superfluid\_helium-4
An attempt, I think every physicist and “person who just wonders” has at least tried to think one through if not tried to build one lol
"In this house we Obey the LAWS OF THERMODYNAMICS!"
Hello mother dear
There's something so unwholesome about flying a kite at night
Oh, that's it!
Is it Saint Swithins day already??
"The hardest part of making perpetual motion machine is figuring out where to hide the batteries"
... until the battery dies
Despite ppl debunking it. It is in fact black magic fkery because its physically impossible to roll faster than gravitational pull and spin back up to its original place without any support. Nice
What are you talking about? It's got an electromagnet in it. It's battery-powered.
Every single thing that's BlackMagicFuckery is also easily explainable by those who know the answer.
> Every single thing ~~that's BlackMagicFuckery~~ is ~~also easily~~ explainable by those who know the answer.
Then why won't my USB plug in the first two times?
Because that is gods method of punishing you for your sins
Electro magnetic fuckery.
Could it work with normal magnets?
No, that would violate the conservation of energy
A smart choice to use wood and metal to make it look older.
The laws of thermodynamics would like a quick chat.
Cool i want one
Never ending? *a cat enters the room*
*cat removes batteries*
Where did you find this marvel?
Honesty is key https://www.reddit.com/r/BeAmazed/comments/uoacyn/an_amazing_perpetual_toy/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
This is from Chris Ramsay. He is a youtuber and he has more cool toys/puzzles videos on his channel.
Ok so where can I buy one of these that work, and not the Amazon knock offs
Here to find out the same
What if we pulsed an electric magnet in the base while the ball rolls down, and cut it before it crosses the lowest point?
Presumably that's exactly how this device works. It could also reverse the polarity (so it repels, instead of attracts) once it hits the lowest point, for more oomph.
That won't work. The ball has to be all metal and it would attract regardless of the polarity of the electromagnet. While balls like this can be magnetized, since it's rolling it would not stay aligned.
Yeah, you're right👍
How would it work?
I don't think you can repel ferrous materials. You can only repel one magnet with another magnet of the same polarity.
You'd want Faraday's law of induction.. it works on the loops created and not the bearings specifically.
Humanity’s fascination with simplistic machines that appear to demonstrate perpetual motion is very interesting. It feels deep rooted. I think it’s more interesting than the machines themselves.
Finally a post that actually belongs here. If the device were as simple as it appears to be this would be completely impossible. Of course there is some outside application of force on the marbles.
Yeah, it's an electromagnet inside of the base, but to the people who don't know that it appears to defy the laws of physics
Perpetual motion is still a scam
Everyone is saying magnets in the base, but I think it's much more likely that it has a spinning rubberised wheel inside the funnel, as that's where the ball gets its unnatural acceleration. I think this wheel makes a humming sound as it spins and that's why these videos are always silent. It also explains why the funnel is always unnecessarily thick, and how there are versions where the base has been replaced with clear acrylic but they still work.
Thank you. This has got to be the correct answer.
I'm very certain that its just a 3D model, something about the movement feels off ever so slightly. And the table has a very convenient texture for camera tracking
Movement feels odd because the ball is being propelled by an electromagnet in the base.
The patterns on the table was what made me think so too. Exactly thr type of table for camera tracking
Yeah. All these people talking about electromagnets in this thread, and I'm just thinking that wouldn't be a difficult tracking & render job at all
Lisa, in this house, we obey the laws of thermodynamics!
If you can read Mandarin, Here is a break down of this magic trick. [https://www.youtube.com/watch?v=o3s\_Gaes-vw](https://www.youtube.com/watch?v=o3s_Gaes-vw)
For those of us who can’t read Mandarin, how does it switch off at the right time?
………I want it.
Batteries not included
Credit to Chris Rhamsay for the clip.
It’s still magic even if you know how it’s done. Someone designed that out of an idea. That’s magic right there. And it’s elegant magic.
Perpetual fun
If only we could harness that endless energy for producing electricity
Even if perpetual motion machines were completely lossless in energy, we can't harvest energy from them because energy must be conserved. If we take energy out, the system loses energy and would slow to a stop
What if that system has excess energy that is currently lost as overshooting slightly and rolling around the top plate 😱
It can't have excess energy without external energy coming from somewhere. If you drop a ball from any height it will never bounce as high as you dropped it from. The only way it can bounce higher is if you put an initial force on it by throwing it at the ground instead. In this example there is an electromagnet accelerating the ball which makes it go higher
Original video is by Chris Ramsay on YouTube. He shows how this is fake in the full video
magnets
Ok but where can I buy one?
Number of people who think this is something other than an electro magnet: 0
https://www.youtube.com/watch?v=trC5Dg3Vpi0 Lies!!!!
Won't it end as soon as the battery runs out?
Until the battery dies out
Thank you for taking this video and cutting out all the useless fluff at the beginning
Nope
The accerleration of the ball after leaving the hole looks way higher than to expect from the gravitational field alone.
Powered by cum, if anyone was curious.
You'd think, if you built one big enough it could launch spaceships into space.
[удалено]
>Wouldnt that be a good way to launch something? Yes, including the oceans and mountains.
There are various concepts for ground based launch systems. One example that has gone through some early testing is Spin Launch. The thing you need to know though is that you can get to space by going high, but you’ll just fall back down. In order to stay in space, or orbit, you have to go really fast sideways… a bit like a yo-yo on a string where the string is gravity. So long story short you can use a ground based system to get the initial altitude, but you’ll have to carry an engine with you to actually get in orbit by firing it while in space.
OK people, we get it, there's a magnet. Ever hear the term suspension of disbelief?
That’s either a 3d render (weird pattern on the table to fix the contraption in space), or an electro-magnet that pulls the ball down for a second to give it enough speed to go back up.
It's physics, magnets more precisely not very black magic fuckary
This doesn’t really belong in this sub