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.
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
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.
Using magnetic induction with a spinning motor is an inefficient way to boil water. A lot of electric energy is lost as waste heat in the motor, air turbulence and noise. Using a heating coil is more efficient. However, the most efficient way to heat water is using a heat pump. Heat pumps can achieve more than 100 % efficiency in producing heat.
@@simon6071 How can it (heat pump) be more than 100% efficient? Does that mean if I feed it with 10 joules of energy it can produce 700 joules for example?
@@simon6071 ерунда) никакой тепловой насос не даст более 100% ) единственный способ получить КПД больше единицы это магнитная индукция) ua-cam.com/video/V2aOZYgRk9c/v-deo.html ua-cam.com/video/5AXgVqAWozU/v-deo.html
this is a similar principle like a microwave oven though. Just that they don’t spin the magnet. Instead they use electromagnets with alternating currents to switch the direction of the magnetic field.
@@buttonup3522 Heat pump does produce more heat than that can be produced by the electricity supplied to the heat pump. However, the extra heat does not come from the electricity supply. The extra heat comes from the heat in the air after the heat has been concentrated by compression.
@@AbuMan77 Almost nothing will happen, to get any energy you need a variable magnetic field. This can be obtained mechanically as I have or electronically as in induction cookers.
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
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.
@Blind Bob water is paramagnetic and is physically affected by strong magnetic fields regardless of your armchair scientist knowledge. Please shut up lol.
@@samueladitya1729 yeah, but its same thing, motor is spinning magnets which alternates poles = heat alternating current also alternates poles = heat so yeah its same but different way
@Ssam ASMR a moving magnetic field induces an electric current in a copper wire that is within the moving field. And if you put a spinning copper gyroscope on top of and at the center a large powerful neodymium magnet that is stationary, the gyroscope will never stop spinning
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.
In a similar setup you would need something like twenty electromagnets with alternate polarity. The switching would imitate the rotation of the static magnet plate. No motor would be needed. This might save a lot of input power. An experiment with a steel cooking bottom would be very important. Ideally you would have let's say 12 x 6 Rows of electromagnets which have an angle of 30 degrees. Like the spokes of a wheel.
this actually looks like an induction cooktop from eras before the digital and electromagnetic ages or something from a world where energy waste is actually minimized
@@tiberionjraxiosn9493 lol but not before the electric motor. which is wasting energy to heat, I would hazard a guess that this method (In the video) is less efficient than a simple element heater boiling water, IE a typical electric kettle.
@@brycering5989 makes sense, but isn't it cool if someone in the past actually made this? edit: assuming they used a different thing to spin the magnet disk with much less friction than usual
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.
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.
(28 Nov 2021) I added descriptions to the video in 56 languages. --------------------------- Boiling water with magnets. New edition - ua-cam.com/video/7wZ8DWu-sw8/v-deo.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. :)
@@smartcam3164 This is not necessary, because the magnets are at the bottom, and the heat goes up. And between the magnets and aluminum there is an air gap. I touched the magnets with my hand after the water boiled, it is absolutely cold.
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.
Looks to be a efficient one. I thought the same. Keep congnitive thinking. The world is not thinking enought.its in the face but not mentioning it. Weird right! Lol
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.
Haii broo this experiment is work properly??? & water is boil?? For what I am doing experiment in my collage mini project purpose pls tell me correctly (1 am a mechanical engineering student)
? Magnetic induction is not new. This, while a pretty neat experiment to demonstrate it, is not a practical solution to boiling water. Not by a long, long shot.
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.
@@СексТигр ну я двоечником был, но больше склонен к тому, что работать не будет, не у одного же меня такие мысли дурные в голове проскакивают, что через редуктора запитывать и прочее, просто мне интереснее смотреть как другие страдают херью, чем самому на неё время и деньги тратить.
@@пятаяколонна-ф3д, не получится, теловые потери слишком большие будут. Даже если обмотки двигателя будут из суперпроводника - не получится. Добавлю - через редуктор можно иили прибавить обороты и потерят в крутящем моменте или на оборот, однако любой узел внесёт потери, если тот не идеален.
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.
@@NICEFINENEWROBOT Mechanical vibrations of the aluminum plate are not responsible for the heating. The time varying magnetic field induces a circulating voltage, called emf (Faraday´s law) which in turn moves the free electrons in circles inside the aluminum plate. So there is a circulating current known as Eddy current. The dissipated heat (power P) depends on the electrical resistance R of the plate: P = I*I*R, which is partially absorbed by the water and then it is heated.
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 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
You can edit audio only by changing your track to a track from the UT library. Explanation in the Wikipedia link in the video description. Key words - eddy currents. They are what heat up old low-frequency iron transformers and AC motors. The main heating occurs not due to the resistance of the wire, but due to the heating of the iron core. That is why cores are made of thin plates insulated from each other - to reduce EDDY CURRENTS. In fact, my video is a primitive analogue of an induction cooker. Only in these cookers there is a high-frequency electromagnetic field and it changes electronically. I could release a new video with a good explanation, but I don’t know if it makes sense after so many years and how relevant it will be today. But I’ll think about it, maybe I’ll do it. Thank you for your comment.
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.
@@rodrigosilvasantos2284 todo mundo acha mas o q ignoram é que todo.metal e magnetico .. so q uns reagem.muito pouco como o aluminio q tem seu campo magnetico todo embaralhado dai so funciona em movimento ... pois se tentar encostar um ima gigante em uma placa de aluminio estacionada ele simplesmente cai
@@jhony6390 valeu colega, pela explicação!!!! Essa experiência é um misto de física e química!!!! E quem é leigo acaba ficando boiando!!!!!kkkkkk mas valeu!!! Abcs.....
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
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.
It sucks we donate millions and there isn't anything to show for it :/ when in reality it's this simple.... I heard a story of a guy from Kenya named John who sold 300 rabbits to power his town. I'm certain we donate way more than the cost of that.
@@conker33350 The donations do little but stifle economic growth in africa. Companies around the world dump products on africa as donations, destroying any hope of economic innovation in africa. If you want to destroy an economy, try to take care of the needs of the people.
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 !!!
Haii broo this experiment is work properly??? & water is boil?? For what I am doing experiment in my collage mini project purpose pls tell me correctly (1 am a mechanical engineering student)
Their is a guy who has a copper coil over the magnetic disk looped into his boiler circuit....he was only using 1/2 copper. Needed 3/4 for the coil to transfer more heat into the boiler circuit.
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.
Certainly the way we produce energy now is as inefficient as you can get for the sake of profit. At this point everyone should have solar panels at the least but the big energy companies waste more money fighting against it than they probably do to produce it... it's a dark secret that all things we use that a big corporation produces are a bigger RIP off then most people could even fathom
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.
The watts of the motor 60. A simple kill a watt meter would tell you right away. 100 seconds. 60watts x 100 sec= 6000 watt-sec or 6 KJ. It is over unity. That's why it got shelved for a year jk. 4.2 J/g deg c x15g x 77 deg from 23 deg c. 4.8 KJ. Well it wasted 2KJ heating the surrounding air and the rest went into the water. But I forgot to take into account the heat capacity of the aluminum. That's probably 2KJ there. 0.9 J/g deg c is aluminum. The disk is 6mmx 20mm. Density of Al is 2.7 g/cc 1.88 g Al x 100 sec x 0.9 J/g deg C x 77 sec= 15 KJ. Oops. 6KJ input and 20 KJ output. About 3 times over unity. This is a typical result when you do the math on neo mags. Pretty quantum I must say.
@@paulneilson6117 Are you saying it produced 3x more power than it consumed? So I guess the neo mags must demagnetise during this process. It would be interesting to know how much energy is used to create the magnets.
This contraption will take strictly more power. This is essentially just an induction-heater where the changing magnetic field is not created by changing currents but by mechanically moving the magnets. Induction-heaters in general can be quit efficient, but here you have the losses of the motor it self and the magnets being quite a bit away from the container as well as the underside losing heat to the air. For cooking induction-heaters can be anything from worse to better than normal hot tops: For smaller pots and short cooking-times they are in general a bit more efficient as they do not need to heat up so much extra material, but with longer cooking-times this benefit is lost as everything just stays at the same temperature. So making an egg - induction is better, cooking a 5L Goulash - resistive heating is better. as for Paul - just ignore that joke. for whatever reason he thinks that aluminium takes more energy to increase its temperature the slower you heat it up..... being of by a factor of 100.
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.
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.
Magnetizing engine that was built right after World War II old man did tell me about 1 races and no does work it keeps from wearing out too and what do you want the truth or what magnetism does create things any you can say it could be destructive that's the way it is so here you are with a high output engine Verizon is perfect by demagnetizing but the problem is here by magnetizing you create heat energy and it does transfer from one place to the other like you know that's another whole new Avenue of understanding
uhhh not exactly... thats what we call a stater, in laymans terms its basically a generator or alternator, its now the snowblower gets its electricity to charge its battery(if it has one) and to power the ignition and any other electrical accessory like heated grips.
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.
That also explains why you need more different wires if you need to transfer or create a lot of current with magnets More wires, more amps As in the iron cores of the motors is made of a lot of different plates to evacuate the heat
Magnets are a key component for all large scale power generation on Earth. Nuclear, hydrocarbon, geothermal, hydro, water wheels etc. ALL use magnets to coerce electrons to move along a wire.
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.
Это потрясающе! Редко кому удается снизить КПД нагревательного прибора, но автору таки удалось! Теперь электроэнергия тратится не только на нагрев воды, но и на нагрев двигателя. Самое смешное, что вращающееся магнитное поле здесь генерируется дважды. Первый раз обмотками двигателя, второй раз фанеркой с магнитами. Это гениально, брависимо! ПС. Жан Бернар Леон Фуко (1819-1868) аплодирует стоя.
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.
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.
@@kcsi1 I do not think so. The material must be affected by the Lenz effect. Microwaves are able to create heat within a material by causing molecules that have opposing poles to spin... Now I am wondering what exactly is the difference. I know there is a significant one because Microwaves are much more complex for good reason.
Assuming the quanta of water boiled was 78.5 ml as ascertained by slowing the video down whereto observe the syringe gradations and scaled the dimensions of the water cylinder, then the efficiency of said system is 78.3 percent if the input via motor was 60 J/sec and the time for raising the water Temperature from 23.5 C to 98C over 180 seconds. Thanks for posting a wonderful video of excellent Informations. 🙂
Just a guess but the aluminium was in contact with the water it looked as he put the glue on the edge of the glass then pushed it on to the aluminium disk I think
Fenomenul este cunoscut de mult timp . Este vorba de inducție electromagnetică și apariția curenților turbionari Foucault in discul de aluminiu de pe fundul paharului folosit pentru fierberea apei . Generarea acestor curenți in discul de aluminiu duce prin efect Joule la încălzirea lui . Celelalte experimente cu rotația discului de aluminiu și vibrația tablei de aluminiu folosesc într-un fel regula lui Lentz .Este de fapt principiul de funcționare al motorului electric cu rotorul in scurtcircuit .
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?
@@PAAKISTAN Google translate: impossible, there are friction forces in the bearings, and nothing spins in the induction hob, does not rub, respectively, the efficiency is higher
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 ?
Зачем между электричеством и водой столько посредников? Затраченного электричества на движок,хватило бы вскипятить литра 2 воды, а не 15мл. Это называется зелёная энергетика-заряжаем теслу от дизельгенератора.
Friends, if you are interested in the development of my channel, you can support it here - buymeacoffee.com/graindiose
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.
Come on all you nay sayers! This is a great teaching tool for introducing new concepts to young children on magnetism .
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
Я думаю , что стакан с водой нагревает металлическое кольцо , через которое проходят вихревые токи от подвижных магнитов ...🎉
l just sat here and watched water boil, l need to get out more
debeeriz...but it's scary out there...I've been told.
The blinking lights?
Is 2 leds in opposite directions so each one comes on in one direction of current flow current direction depend on magnet polarity
debeeriz, yer living the dream
Mee too 😂 😂😂
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.
Using magnetic induction with a spinning motor is an inefficient way to boil water. A lot of electric energy is lost as waste heat in the motor, air turbulence and noise. Using a heating coil is more efficient. However, the most efficient way to heat water is using a heat pump. Heat pumps can achieve more than 100 % efficiency in producing heat.
@@simon6071 How can it (heat pump) be more than 100% efficient? Does that mean if I feed it with 10 joules of energy it can produce 700 joules for example?
@@simon6071 ерунда) никакой тепловой насос не даст более 100% ) единственный способ получить КПД больше единицы это магнитная индукция)
ua-cam.com/video/V2aOZYgRk9c/v-deo.html
ua-cam.com/video/5AXgVqAWozU/v-deo.html
this is a similar principle like a microwave oven though. Just that they don’t spin the magnet. Instead they use electromagnets with alternating currents to switch the direction of the magnetic field.
@@buttonup3522
Heat pump does produce more heat than that can be produced by the electricity supplied to the heat pump. However, the extra heat does not come from the electricity supply. The extra heat comes from the heat in the air after the heat has been concentrated by compression.
Wow, this is brilliant. Love the sound of the motor loading up as the Eddy Currents build resistance.
that's exactly it! 👍
@@grain-dioseCosa succede se posizioni i magneti con poli uguali?
@@grain-dioseWhat happens if you place the magnets with the same poles?
@@AbuMan77 Almost nothing will happen, to get any energy you need a variable magnetic field. This can be obtained mechanically as I have or electronically as in induction cookers.
@grain-diose and the water is releasing steam?
I met Eddy Current once, nice fellow, very misunderstood, and a little bipolar. :)
:)))
that was spot on! Finest Joke ever :)
Wow.,😂😂😂
Ha ha couldnt resist it eh?
wonder if you could use a magnet to power the motor
gave an upvote because dude had enough attention to detail to polish the edges of the thick aluminum disc underneath the glass!
That looked like a chromed part.
@@louistournas120 chromed part ....... pmsl wtf ?
@@leightonwestbury92 :
They make the part from iron and they apply a thin layer of chromium using electroplating technique.
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
This really is amazing. You've discovered the cure for insomnia.
:)))
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.
@Blind Bob water is paramagnetic and is physically affected by strong magnetic fields regardless of your armchair scientist knowledge. Please shut up lol.
Fero
Yyyyiuouyyyuoiouyiyyiuiyyuyuiyyitu
*per se
Nice demonstration of the effect, the best I have seen. Now hook up an antenna and get broadcasting! Nobody has attempted this AFAIK.
Congrats you've unfurled the secret of induction cook tops!
But instead using motor and magnet, induction heater uses alternating current
No. Induction cookers use AC and require ferro magnetic pans.
It is the amazment of simplicity this principle with Lenz law this was done.
@@samueladitya1729 yeah, but its same thing, motor is spinning magnets which alternates poles = heat
alternating current also alternates poles = heat
so yeah its same but different way
@Ssam ASMR a moving magnetic field induces an electric current in a copper wire that is within the moving field.
And if you put a spinning copper gyroscope on top of and at the center a large powerful neodymium magnet that is stationary, the gyroscope will never stop spinning
Great! Now I can boil egg with my bicycle.
Cheers from Indonesia
.........
@@chaoticlife311..........?
Use motorcycle, even faster :)
@@georgewong324 That's a lot of wasted energy.
Everybody, I'll use bicycle because I need sport.
That is a rather interesting alternating magnetic field design there! LOL! Though likely quite inefficient it obviously is effective. Nice work. 😀
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.
Like in a microwave oven :)
In a similar setup you would need something like twenty electromagnets with alternate polarity. The switching would imitate the rotation of the static magnet plate. No motor would be needed. This might save a lot of input power. An experiment with a steel cooking bottom would be very important. Ideally you would have let's say 12 x 6 Rows of electromagnets which have an angle of 30 degrees. Like the spokes of a wheel.
Cool, you've reinvented the induction cooktop. I like the sound.
this actually looks like an induction cooktop from eras before the digital and electromagnetic ages
or something from a world where energy waste is actually minimized
@@tiberionjraxiosn9493 lol but not before the electric motor. which is wasting energy to heat, I would hazard a guess that this method (In the video) is less efficient than a simple element heater boiling water, IE a typical electric kettle.
@@brycering5989 makes sense, but isn't it cool if someone in the past actually made this?
edit: assuming they used a different thing to spin the magnet disk with much less friction than usual
@sparky12x induction heater heat are not 100% transfered to the plate
@sparky12x nothing is 100% efficient it would defy the laws of physics
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.
I knew why it would heat before you started but you displayed it well. You always stir my interest in making things myself. Thanks !
If the purpose is simply to boil water, a microwave or nichrome wire will be more useful.
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.
Link to an example?
I was a volunteer firefighter once and we used the stovetop.
In my area, I was thinking about windmills
One plate has magnets reversed every other
Thank you so much for this informative video! I’m sure those who live off the grid will make good use of this principle
Perhaps a windmill/ propeller turning an induction heater to heat water?
Sounds great!
(28 Nov 2021) I added descriptions to the video in 56 languages.
---------------------------
Boiling water with magnets. New edition - ua-cam.com/video/7wZ8DWu-sw8/v-deo.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. :)
Fried eggs with a taste of a magnetic field :)
ua-cam.com/video/ar0X2Ai1ahQ/v-deo.html
great
Probably need to add that I cut off the bottom of the glass of course. I did not show it in the video, I thought it was understandable.
@@grain-diose i think it will be a good idea to add thermal insulation to the disk it will be faster
@@smartcam3164 This is not necessary, because the magnets are at the bottom, and the heat goes up. And between the magnets and aluminum there is an air gap. I touched the magnets with my hand after the water boiled, it is absolutely cold.
Physics are the same as an induction cooker! Cool demo
27kHz
@@cplenny4281 , maybe like 8 or 9khz.. 10 magnets are half a wave each.. The motor is probably 1760 rpm AC motor.
That's great. The 250W engine heats the Thimble water in 4 minutes. It's worth it. :)
60W engine. This is a demonstration of eddy currents, and not a proposal to boil water in this way.
@@grain-diose It can be 60W (cannot be detected from the video). Heating the Foucault currents must be realized differently, but a good attempt.
Why do I find magnets so attractive? It's a question I'll have to iron out.
n o
@@deez747 nitrous oxide? Is that the answer?
n o
Because it does things that you can't see. That's cool.
@@robinhooper7702 *hot
Changing magnetic flux creates eddy current, it then heats up due to the internal resistance of the metal plate
Cool experiment
Exactly.
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.
Watched this last night, realized this morning after thinking about it that you just made a "mechanical induction heater".
Motor is not just mechanical
Looks to be a efficient one. I thought the same. Keep congnitive thinking. The world is not thinking enought.its in the face but not mentioning it. Weird right! Lol
@Marko yep
Not efficient at all. Use the electric power driving the motor through some nichrome wire. That is 100% efficient.
Heater?Did the temperature rise? lol
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.
Now I know how to make pure oxygen, could come in handy
I use induction cooking all the time more efficient then convection plate
Gas flows are incredible, I can see the flow, thanks
This is basically how induction cooking works. Nice to see a construction model!
Something new to play with :)
Haii broo this experiment is work properly??? & water is boil?? For what I am doing experiment in my collage mini project purpose pls tell me correctly (1 am a mechanical engineering student)
Всего лишь поиграть
We need more people like you in this world.. I’m very impressed,.
Thank you!
? Magnetic induction is not new. This, while a pretty neat experiment to demonstrate it, is not a practical solution to boiling water. Not by a long, long shot.
@@uni-byte why lol
Exactly what I knew would happen beautiful visual explanation of eddy currents in non ferrous metal
Michael Faraday and James Joule, both must be rolling in their graves. Brilliant.
dw, im here from the future, year is 2020 and corona virus keeps humanity indoors.
I know ur past self would never belive it lol.
@@Sanguen666 And Flu was completely eradicated lol!
The currents of Foucault.
@@Sanguen666 Corona virus did nothing. Politicians did it.
...but not.
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.
Thank you!
Best commitment in here. 🤜🤛😊
Отличная штука.Можно попробовать,обыкновенный ветряк или турбину,для механического вращения магнитов, чтобы нагревать воду.
So you made an induction stove with actual magnets instead of an oscillating electromagnet. Neat.
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 was born in the USSR and live in Moldova today, so I don’t know this show, but I found something on UA-cam - ua-cam.com/video/ckBoYRhwfCI/v-deo.html
Спасибо за наглядный пример.
Сам хотел провести такой эксперимент. 👍
Как думаешь, реально ли запитать этот двигатель от самого себя, или всё таки будут потери? Склоняюсь что он не сможет создать достаточную мощность.
@@пятаяколонна-ф3д Если только анально-орально... а иначе бестолку
@@СексТигр ну я двоечником был, но больше склонен к тому, что работать не будет, не у одного же меня такие мысли дурные в голове проскакивают, что через редуктора запитывать и прочее, просто мне интереснее смотреть как другие страдают херью, чем самому на неё время и деньги тратить.
@@пятаяколонна-ф3д, не получится, теловые потери слишком большие будут. Даже если обмотки двигателя будут из суперпроводника - не получится.
Добавлю - через редуктор можно иили прибавить обороты и потерят в крутящем моменте или на оборот, однако любой узел внесёт потери, если тот не идеален.
@@normusfull4185 ясно, спасибо за исчёрпывающий ответ, лучшее что слышал. Доходчиво.
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.
There are vibrations in the aluminum plate that are induced by the magnets.
@@NICEFINENEWROBOT Mechanical vibrations of the aluminum plate are not responsible for the heating. The time varying magnetic field induces a circulating voltage, called emf (Faraday´s law) which in turn moves the free electrons in circles inside the aluminum plate. So there is a circulating current known as Eddy current. The dissipated heat (power P) depends on the electrical resistance R of the plate:
P = I*I*R, which is partially absorbed by the water and then it is heated.
@@carlosvazquez4401 Understood, but I tried to locate the reason for the deflection of the bubbles.
thats just a convection current, its how heat moves in a container
@@NICEFINENEWROBOT convection currents
i just realize that im sitting here watching water boil.
I have a video you can watch after this. I use sunlight to grow grass.. After that, i use air to dry paint. Ohhh Science
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.
Retired man finding fun in science!
yes :)
You are amazing btw
Thank you!
Juste la réinvention du fil à couper le beurre, sans intérêt
@The Ancient Scientist Oui, j'imagine un système éolien dans la cuisine 🤣
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.
It's the eddy current that causes it.
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
You can edit audio only by changing your track to a track from the UT library. Explanation in the Wikipedia link in the video description. Key words - eddy currents. They are what heat up old low-frequency iron transformers and AC motors. The main heating occurs not due to the resistance of the wire, but due to the heating of the iron core. That is why cores are made of thin plates insulated from each other - to reduce EDDY CURRENTS.
In fact, my video is a primitive analogue of an induction cooker. Only in these cookers there is a high-frequency electromagnetic field and it changes electronically. I could release a new video with a good explanation, but I don’t know if it makes sense after so many years and how relevant it will be today. But I’ll think about it, maybe I’ll do it.
Thank you for your comment.
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.
Yes. If he used a cycle for that
Achei estranho também, o momento em que ele passou a placa de alumínio, e ela se atraía pelo imã!!!
@@rodrigosilvasantos2284 todo mundo acha mas o q ignoram é que todo.metal e magnetico .. so q uns reagem.muito pouco como o aluminio q tem seu campo magnetico todo embaralhado dai so funciona em movimento ... pois se tentar encostar um ima gigante em uma placa de aluminio estacionada ele simplesmente cai
@@jhony6390 valeu colega, pela explicação!!!! Essa experiência é um misto de física e química!!!! E quem é leigo acaba ficando boiando!!!!!kkkkkk mas valeu!!! Abcs.....
An induction heater. Good experiment.
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
Heating effect of Magnet
Hope it's gonna get Viral
It was a misleading caption as the water was heated by magnetic induction in a non magnetic metal.
Fantastic! Absolutely fantastic! 👏👏👏👏👏👏👏 Thanks for sharing.
The best channel that share amazing important experiments
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.
А мотор без сети руками крутить?
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.
Great video! Gave a very good understanding of the concept. Thanks.
Now remove the motor, attach a bicycle to it - then make a "Clean distilled water for Africa"-kickstarter.
It sucks we donate millions and there isn't anything to show for it :/ when in reality it's this simple.... I heard a story of a guy from Kenya named John who sold 300 rabbits to power his town. I'm certain we donate way more than the cost of that.
@@conker33350 The donations do little but stifle economic growth in africa. Companies around the world dump products on africa as donations, destroying any hope of economic innovation in africa. If you want to destroy an economy, try to take care of the needs of the people.
Old Chinese proverb: Give a man a fish to feed him for a day. Teach a man to fish, and feed him for a lifetime.
they are too lazy to peddle
Boiling only kills germs. Other impurities like lead still not be able to filter with this technique.
Very clever !! good presentation !! thanks Grain !
The Faraday electro magnetic induction coffee maker.
Normally they are Foucault currents.
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 !!!
Keely, Holtz, Chladni
Haii broo this experiment is work properly??? & water is boil?? For what I am doing experiment in my collage mini project purpose pls tell me correctly (1 am a mechanical engineering student)
Thanks for sharing! My class will love it! :)
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
Their is a guy who has a copper coil over the magnetic disk looped into his boiler circuit....he was only using 1/2 copper. Needed 3/4 for the coil to transfer more heat into the boiler circuit.
Replace the permanent magnets with electromagnets and you got yourself an induction heater
@@ethansgarage7627 true, this one is just mechanical
I love it when you can actually hear the magnets taking on the load slow down and pulse in rotation.
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.
Certainly the way we produce energy now is as inefficient as you can get for the sake of profit. At this point everyone should have solar panels at the least but the big energy companies waste more money fighting against it than they probably do to produce it... it's a dark secret that all things we use that a big corporation produces are a bigger RIP off then most people could even fathom
Never thought I'd be watching a video on boiling water!
I thought water didn't boil while being watched!??
Proved 1 false!
Bravo well done brother!
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.
The watts of the motor 60. A simple kill a watt meter would tell you right away. 100 seconds.
60watts x 100 sec= 6000 watt-sec or 6 KJ. It is over unity. That's why it got shelved for a year jk.
4.2 J/g deg c x15g x 77 deg from 23 deg c.
4.8 KJ.
Well it wasted 2KJ heating the surrounding air and the rest went into the water. But I forgot to take into account the heat capacity of the aluminum. That's probably 2KJ there.
0.9 J/g deg c is aluminum. The disk is 6mmx 20mm. Density of Al is 2.7 g/cc
1.88 g Al x 100 sec x 0.9 J/g deg C x 77 sec= 15 KJ. Oops.
6KJ input and 20 KJ output. About 3 times over unity. This is a typical result when you do the math on neo mags. Pretty quantum I must say.
100,000,000 times as much!
@@paulneilson6117 Are you saying it produced 3x more power than it consumed? So I guess the neo mags must demagnetise during this process. It would be interesting to know how much energy is used to create the magnets.
@@paulneilson6117 ur calculations are wrong... Bcz it took 4 minutes to boil the water not 100sec
This contraption will take strictly more power.
This is essentially just an induction-heater where the changing magnetic field is not created by changing currents but by mechanically moving the magnets.
Induction-heaters in general can be quit efficient, but here you have the losses of the motor it self and the magnets being quite a bit away from the container as well as the underside losing heat to the air.
For cooking induction-heaters can be anything from worse to better than normal hot tops: For smaller pots and short cooking-times they are in general a bit more efficient as they do not need to heat up so much extra material, but with longer cooking-times this benefit is lost as everything just stays at the same temperature. So making an egg - induction is better, cooking a 5L Goulash - resistive heating is better.
as for Paul - just ignore that joke. for whatever reason he thinks that aluminium takes more energy to increase its temperature the slower you heat it up..... being of by a factor of 100.
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.
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.
Magnetizing engine that was built right after World War II old man did tell me about 1 races and no does work it keeps from wearing out too and what do you want the truth or what magnetism does create things any you can say it could be destructive that's the way it is so here you are with a high output engine Verizon is perfect by demagnetizing but the problem is here by magnetizing you create heat energy and it does transfer from one place to the other like you know that's another whole new Avenue of understanding
uhhh not exactly... thats what we call a stater, in laymans terms its basically a generator or alternator, its now the snowblower gets its electricity to charge its battery(if it has one) and to power the ignition and any other electrical accessory like heated grips.
Very interesting experiment, to heat water the sun is a simpler and cheaper way!
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.
That also explains why you need more different wires if you need to transfer or create a lot of current with magnets
More wires, more amps
As in the iron cores of the motors is made of a lot of different plates to evacuate the heat
No. to reduce eddy currents in the core.
I have heard you can power the whole earth with magnets. I always found magnets fascinating.
Magnetism is not an energy but a force. You cannot extract energy from a magnet, but it is possible to transform the ways energy is wasted
Magnets are a key component for all large scale power generation on Earth. Nuclear, hydrocarbon, geothermal, hydro, water wheels etc. ALL use magnets to coerce electrons to move along a wire.
Wow, something more interesting than watching paint dry
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.
In my school the same topic was going on, and i get this recommendation.
Why not Google write my papers 📝
Это потрясающе! Редко кому удается снизить КПД нагревательного прибора, но автору таки удалось! Теперь электроэнергия тратится не только на нагрев воды, но и на нагрев двигателя. Самое смешное, что вращающееся магнитное поле здесь генерируется дважды. Первый раз обмотками двигателя, второй раз фанеркой с магнитами. Это гениально, брависимо!
ПС. Жан Бернар Леон Фуко (1819-1868) аплодирует стоя.
Thanks for sharin' another genius idea my good sir! Keep it up please ;)
This most certainly isnt genius. This is the more difficult way to make an induction cooktop stove... He is just doing it mechanically.
What the hell is going on ??? Magic has returned to our world ???🤣🤣🤣
Haha! Mechanic induction oven/cooking plate! Cool!! :)
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.
YheA!!!
*it's good that I was awake*
Mechanical induction stove. Nice video
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.
Do Eddy current work in salted water?
To be more precise, he is in fact heating the water, using electricity from the outlet, but maybe not as catchy a title as the one he chose. :-)
@@kcsi1 Following.
that's a very good question from kcsi
@@kcsi1 I do not think so. The material must be affected by the Lenz effect. Microwaves are able to create heat within a material by causing molecules that have opposing poles to spin... Now I am wondering what exactly is the difference. I know there is a significant one because Microwaves are much more complex for good reason.
Esse experimento foi o melhor que eu vi até o momento no UA-cam, parabéns!
Really??? It’s old hat!!!
Assuming the quanta of water boiled was 78.5 ml as ascertained by slowing the video down whereto observe the syringe gradations and scaled the dimensions of the water cylinder, then the efficiency of said system is 78.3 percent if the input via motor was 60 J/sec and the time for raising the water Temperature from 23.5 C to 98C over 180 seconds. Thanks for posting a wonderful video of excellent Informations. 🙂
I wonder if putting the aluminum inside the glass would work better.
Just a guess but the aluminium was in contact with the water it looked as he put the glue on the edge of the glass then pushed it on to the aluminium disk I think
Look,, magrav free energy,,
aluminium is bad for you look up
@@volkinaxe I looked up but no aluminum only ceiling please advise.
@@volkinaxe not for drinking, for testing purposes
Fenomenul este cunoscut de mult timp . Este vorba de inducție electromagnetică și apariția curenților turbionari Foucault in discul de aluminiu de pe fundul paharului folosit pentru fierberea apei . Generarea acestor curenți in discul de aluminiu duce prin efect Joule la încălzirea lui . Celelalte experimente cu rotația discului de aluminiu și vibrația tablei de aluminiu folosesc într-un fel regula lui Lentz .Este de fapt principiul de funcționare al motorului electric cu rotorul in scurtcircuit .
As a scientific example, the video is great!
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?
Thanks! No, I did not measure.
Apparently, a motor consumes much lesser energy than it is needed to boil the water.
@@PAAKISTAN невозможно,в подшипниках есть силы трения,а в индукционной плитке ничего не крутится-не трётся, соответственно КПД больше
@@ЮрийБеспалов-н8ц sorry brother I can't get you. Write it in english plz
@@PAAKISTAN Google translate: impossible, there are friction forces in the bearings, and nothing spins in the induction hob, does not rub, respectively, the efficiency is higher
Now i can boil water while pedaling my bike
Brilliant demonstration, love it
Très impressionnant 😱
Merci pour ce partage scientifique 😉
Very interesting! Just the title misleading since it makes one think that water can be boiled by just having one magnet and nothing else.
But, it's good démonstration for kids.belle démonstration pour les enfants. Elle change des exemples classiques de l'induction.
It would've been nice to monitor the current in the motor and to see it increase when the aluminum/water was applied.
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 ?
Как вскипятить воду без огня!👍 Интересный эксперимент
Вы никогда не кипятили воду без огня? Я подумал бы что вы живете без электричества, но вы пользуетесь интернетом.
Зачем между электричеством и водой столько посредников? Затраченного электричества на движок,хватило бы вскипятить литра 2 воды, а не 15мл. Это называется зелёная энергетика-заряжаем теслу от дизельгенератора.
poor results with lots of energy but elegant experiment.
I would like to try one that requires a calorie burning process, I would go ham on this device.
Fools response what do you think is realist in the process.oxigen...hydrogen... wake up. I should of. Said hat better sorry bro.lol
Compared to magnetising iron with A/C to create the heat.
🙈