How to Boil Water Using Magnets 

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I heard about the theory of this in physics class 35 years ago but this is the first time I have ever seen it. Thank you sir for your outstanding effort.

A good little demo of uses of eddy currents -- although uneconomic in terms of boiling water. BUT that is the point because we use quite big motors in many things and waste the potential of eddy currents produced in the process of motors doing a 'main job'. This is not to be confused with induction appliances and you make that clear. Excellent.

I met Eddy Current once, nice fellow, very misunderstood, and a little bipolar. :)

Come on all you nay sayers! This is a great teaching tool for introducing new concepts to young children on magnetism .

Thanks! I've been wondering how induction heating was made. Fyi for people reading this: Normally one uses switching currents in a copper coil to shift the magnet fields

l just sat here and watched water boil, l need to get out more

This really is amazing. You've discovered the cure for insomnia.

Thank you so much for this informative video! I’m sure those who live off the grid will make good use of this principle

gave an upvote because dude had enough attention to detail to polish the edges of the thick aluminum disc underneath the glass!

amazing, these are things we've only learned from independent media congratulations on sharing your knowledge

Congrats you've unfurled the secret of induction cook tops!

That is a rather interesting alternating magnetic field design there! LOL! Though likely quite inefficient it obviously is effective. Nice work. 😀

Great! Now I can boil egg with my bicycle. Cheers from Indonesia

(28 Nov 2021) I added descriptions to the video in 56 languages. --------------------------- Boiling water with magnets. New edition - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7wZ8DWu-sw8.html For those who want to repeat the experiment. For faster heating plays the role of RPM motor and the number of magnets and the radius of the disk. More radius, more magnets, more RPM = more frequency change of the magnetic field N / S. Frequency affects the rate of heating. But if the motor is low-power and the aluminum / copper piece is large and thick, then this piece will brake the magnets and the RPM will decrease. Therefore, choose a balance - motor power & volume of water to heat. If the motor power is insufficient, you can wait a very long time. :)

Wow, something more interesting than watching paint dry

You can see the water swirl in such a way that shows the paramagnetic properties of water. The magnetic vortex, per say, that is created is influencing the bubbles towards the center of the spinning disk. Awesome experiment.

Michael Faraday and James Joule, both must be rolling in their graves. Brilliant.

I knew a girl whose dad worked at timken roller bearing. He told how he warmed his ham and cheese sandwich on his machine while he worked... This is like the science project I thought of, when he said that. So cool.

Why do I find magnets so attractive? It's a question I'll have to iron out.

Cool, you've reinvented the induction cooktop. I like the sound.

Since you're still using an electric source, I'll stick to my coffee pot. Thanks for the Kool video .

So you made an induction stove with actual magnets instead of an oscillating electromagnet. Neat.

An AC electromagnet should also boil the water without moving parts. It's the eddy currents in the aluminum causing it to heat and boil the water. This is the same principal as an induction cook stove.

Fun science project to learn from but super impractical. Electric current is turned to an alternating magnetic field in the motor. That alternating magnetic field is turned into mechanical rotation of the stator. Than he turned the mechanical force into another alternating magnetic field to induce eddy current in the water. If you removed the stator and stuck the set up inside the motors external coil the same thing would have happened, or just create an induction coil to be powered from the outlit and skip all the rotation.

I knew why it would heat before you started but you displayed it well. You always stir my interest in making things myself. Thanks !

This is basically how induction cooking works. Nice to see a construction model! Something new to play with :)

Gas flows are incredible, I can see the flow, thanks

Physics are the same as an induction cooker! Cool demo

Watched this last night, realized this morning after thinking about it that you just made a "mechanical induction heater".

Psychiatrist: Is the glass half empty or is the glass half full? Scientist: Both ... when it's boiling.

You know what this reminds me of? Remember that show on TV called Mr. Wizard? I am old enough to remember it (71) LOL

i just realize that im sitting here watching water boil.

not a lot of people realize that the water molecule is positively, and negatively charged. and by flipping that molecule back and forth rapidly can cause molecular friction. hence forth the heat and steam. mike

Changing magnetic flux creates eddy current, it then heats up due to the internal resistance of the metal plate Cool experiment

We need more people like you in this world.. I’m very impressed,.

Exactly what I knew would happen beautiful visual explanation of eddy currents in non ferrous metal

You can boil water by having two spinning circular contra rotating plates that have raised studs. If they plates are in a few millimetre gap water will boil instantly through friction. The wheels can be hand powered by two people or geared. They've have these in the FDNY stations since the 1990s.

Just saw , subscribed, and enjoyed your video. While some will be bored with the whole video, or seeing it as child's play, it is one of the best videos I've seen (clean from clutter which makes people think you're hiding something), clean and non controversial. It clearly displayed science and ingenuity at work. I've seen other channels that similarly boil water that way but yours isn't hiding anything but rather, conveys to the viewer how to boil water with or without electricity : without- by attaching the wheel to a bicycle chain and powered that way if you're in the wild, need a cup of coffee, and your device boils the water necessary for a great day away from the hustle. In my opinion, a super video.

Спасибо за наглядный пример. Сам хотел провести такой эксперимент. 👍

Replace the permanent magnets with electromagnets and you got yourself an induction heater

Great demo of generating Eddy currents in a metal base to heat water. It is possible to build a high frequency induction unit using a coil of wire with a ceramic plate on top. The coil is fed by a powerful amplifier that is fed by a high frequency oscillator that the frequency and coil are resonant to each other. Then put a steel base pot on top and cook with it. Expensive to build, but is efficient if done right. I like induction cooking. Only the pots get hot, and not the ceramic under them. The ceramic heats up by taking heat from the pot, and not from the induction coil below.

Awesome. It would have boiled faster without all of us watching of course. ;) You're welcome hehe.

Dude dude dude this is sooo seeing the trees for the forest. I saw this and did a Picard face palm...a double pfm! Thank you so much for sharing this! Why o why did I not think of trying this. Brilliant and well prepared film! Here's a thought, by placing the rings along the outer rim, the edge of the quarter as it were, one could place an aluminum holder up against the magnets, which could house the glass cup. This way, more field is captured by the larger mass of a cup holder that can surround the cup to a large extent. The extra mass of more aluminum, coupled with more surface area of aluminum to glass for heat transfer, more heat can transfer more rapidly. Great video

Retired man finding fun in science!

Two things would have helped the time to boil: Cover the container (basic cooking technique), and insulate the metal disk so the wind from the magnet disk doesn’t cool it. I’d power this with a windmill: A spinning magnet disk might be handy for more than cooking, and I can see swapping what’s in the field as needed. Charging batteries between meals, for example.

Heating effect of Magnet Hope it's gonna get Viral

I’ve started doing research on the importance’s of frequencies and my thoughts led me here, very cool video and a great learning experiment for sure !!!

I would also like to comment that if you edit the audio with an explanation of what's going on scientifically here you would be taking more seriously by these wannabe physicist in the comment section who should be keeping their arrogant pompous comments to themselves I myself find them very insulting to the video creator some young engineer or inventor may remember watching this video and create a useful practical and efficient way to use this phenomena that will benefit mankind! A job well done even better with a little audio tweaking

It's a generator with a shorted transformer. Same as an induction cooktop, only less efficient.

Bem interessante, o problema é que está gastando eletricidade, se der pra fazer o esquema um esquema tipo roda de vento ou água, da até pra fazer um fogão ecológico. Top.

E' l'oggetto più geniale che io abbia mai visto per risolvere il riscaldamento. Ma sei stato proprio bravissimo. Veramente complimenti. Bravo bravo bravo. Bravissimo. Sei stato veramente sorprendente. Questo oggetto può risolvere acqua calda, cottura dei cibi, riscaldamento domestico ecc. Inoltre se lo attacchi ad un pannello solare ottieni tutto questo in modo del tutto gratuito. Sei un grande.

Especially in a grid down situation its a hell of alot easier to start a fire than it is to spin a motor with a magnetic rotor to boil water.

Soo.. the Aluminium under the cup was heating the water, not the magnet was heating the water. In a microwave the electrons agitate the water, so the water rubbes, and create heat.

I love it when you can actually hear the magnets taking on the load slow down and pulse in rotation.

The best channel that share amazing important experiments

I believe it's heating the water by induction. You can also do this with the wireless charger but it's not as awesome as your experiment.

An induction heater. Good experiment.

Great video! Gave a very good understanding of the concept. Thanks.

This is really cool!. Have you meassured the efficiency of this set up, by calculating the energy consumed by the motor vs the energy provided to the water?

so fascinating i wish it had a narrator but i like it, not sure whats the metal gadget beneath, things we were never taught in school 50yrs ago. I wish to learn more about science but if you dont have the foundations, i sit here awe inspired but not understanding. Wish i was a kid again.

By the way, note that the bubbles do not just rise up, but first deflect to the left. Perhaps this is lens distortion, or a deviation in a magnetic field. Try it in a square container so you don't have a lens.

Great demonstrations! Well done and good video. Did the magnets on the spinning disk also feel warm afterwards?

Very interesting. I’ll have to try this if I can get the magnets. Thanks for your video.

I have heard you can power the whole earth with magnets. I always found magnets fascinating.

In my school the same topic was going on, and i get this recommendation. Why not Google write my papers 📝

Thanks for sharing! My class will love it! :)

I wonder how the amount of electricity used to boil water this way compares to the amount of electricity used to boil water with a conventional electric heating element.

Never thought I'd be watching a video on boiling water! I thought water didn't boil while being watched!??

I have a bicycle trainer rig that works like that: Wheel spins a shaft, shaft has a aluminum plate that spins between two magnet plates, the aluminum plates heats up while spinning, what also happens is that action creates a load making the making the bike harder to pedal. That setup includes a variable load lever to adjust pedaling for easier or harder. It does that by rotating one of the magnet plates a few degrees in relation to the other magnet plate. I assume that alters the N-S relationships of the magnets on each side. And I can say that in a fairly short time the alum plate become too hot to touch. What wasn't covered here is the loading aspect. Yes there may be better ways to heat water (this is just a experiment after all) but the motor was being used here to simply create motion for the experiment. This principle is used for a lot of motion control or loading/braking. Slowing things down through regeneration (F1 racing, hybrid cars). Slowing electro-mechanical things down that drop/fall when the motor stops running, which then becomes a generator being pushed by the load, running the generated electricity through load resistors that create heat.

The Faraday electro magnetic induction coffee maker.

Now i can boil water while pedaling my bike

Woow , what an idea to explain eddy currents generation 👌 I will use your such idea to explain such eddy current effect to my child and also heating effect through it 👍 Thanks a lot for your great idea with such simple arrangements 🙏😀😀😀

This is awesome. You would not want to put this on your countertop but it would use less energy to boil water then stove etc. You could make hot water heaters for your basement etc work with this and only use 5 amps of power to heat it. So this would be in like a small box next to the tank with 2 pipes going into the box to be heated and convection would heat the bigger tank. Unless you used the total content of the large tank it would keep hot water.

Very interesting experiment, to heat water the sun is a simpler and cheaper way!

Fantastic! Absolutely fantastic! 👏👏👏👏👏👏👏 Thanks for sharing.

Actually, you're not heating water with a magnet! You're heating water with a hot metal plate! You heat the metal plate with the currents induced in the plate by the moving magnets (known as Eddy, as you said, or Foucault currents, depending on the country) - it's like a generator with the output short-circuited - the short-circuit currents through the metal generate heat due to its electric resistance.

this is the simple boiler ,with 40w motor you can make hot water ,this is the future of boilers and warming the homes in the winter

As a scientific example, the video is great!

Very interesting! Just the title misleading since it makes one think that water can be boiled by just having one magnet and nothing else.

What the hell is going on ??? Magic has returned to our world ???🤣🤣🤣

That's great. The 250W engine heats the Thimble water in 4 minutes. It's worth it. :)

Thanks for sharin' another genius idea my good sir! Keep it up please ;)

Now remove the motor, attach a bicycle to it - then make a "Clean distilled water for Africa"-kickstarter.

Haha! Mechanic induction oven/cooking plate! Cool!! :)

Can I ask what was the power consumption of the motor and the volume of the water, it would be interesting to see an efficiency calculated. Nice work by the way.

Esse experimento foi o melhor que eu vi até o momento no RU-vid, parabéns!

Wow, 13,000 joules were spent, only 3,200 were needed. 25 % efficiency. The best boiler is designed from the razor blade and wire into the socket.

YheA!!! *it's good that I was awake*

Putting a coil near the spinning magnets to light the LED's is exactly how a snowblower with heated handles and headlight works. magnets on the flywheel, coil going around it.

You should make yourself a cup of coffee using this method.

Wow !! Thanks !! NB : strange to see now, that you could heat your water using the same wheel, coupled to a wind rotor through a belt... much faster than with a Joule heat device ?

Если воды было 20 мл, то на её нагрев с 24°C до 100°C нужно 1,77 Ватт тепла. Но этот мотор за 4 минуты потребил 4 ватта электричества. Вывод: такой способ нагрева воды неэффективен.

You reinvented an Induction heater.

I wonder if putting the aluminum inside the glass would work better.

Great job! I wonder if by placing thermal insulation at the bottom of the aluminum disk will increase efficiency?

- Как вскипятить воду с помощью магнитов? - Взять электрический чайник и вскипятить. Магниты на электростанции уже создали напряжение в розетке, и при включении чайника пойдёт ток, который и вскипятит воду.

electro-magnetism is a mystery. Inside that motor that made the table top turn is a stator that is not in physical contact with the rotor. The rotor turns and the table top too because the stator generated a magnetic field. But then the rotor also does the same thing too and it can boil water with cold magnets.

Why did you not put the thermo-meter back into the water after it boiled?

I'm pretty sure aluminum isn't pushed not attracted to magnets. He has an electric current running through the aluminum plate, heating up the glass and water in it.