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Japanese Inventor's Motor Uses 80% Less Power

novakane007 writes "A Japanese inventor named Kohei Minato has created a new kind of motor. It uses magnetism to perpetuate the motor motion. As a result the motors uses 80% less energy than a conventional motor, while still maintaing the same horsepower. "Minato assures us that he hasn't transcended the laws of physics. The force supplying the unexplained extra power out is generated by the magnetic strength of the permanent magnets embedded in the rotor. 'I'm simply harnessing one of the four fundamental forces of nature,' he says." On top of the energy savings the motor runs cool to the touch and is significantly quieter than a tradtitionally powered fan. Sound to good to be true? Well he's already started selling the fan to a chain of convience stores in Japan. Hopefully soon the design will make it in to your home PC, allowing them to run much quieter."

103 of 1,095 comments (clear)

  1. Quiet PCs? by octalc0de · · Score: 3, Interesting

    "Hopefully soon the design will make it in to your home PC, allowing them to run much quieter"

    What? I wasn't quite aware that computers generated their own power yet... Also, the article says the engines are quite large- probably impossible to be able to use them in a laptop setup. Plus, anyway, power supplies are quite quiet anyway, and they don't generate their own power. The problem with the noise from computers these days is unbearably loud hard drives and harsh fans.

    1. Re:Quiet PCs? by molarmass192 · · Score: 4, Interesting

      You can buy pretty damned quiet PC fans, however, you're right that today's hard drives are louder than hell. Also, I'd bet that they generate a lot more case heat than they let on. That said, am I losing my mind or didn't I read back in 1993 that we'd all be using solid state hard drives by now??? Guess that was a sure thing in the days of $600 hard drives.

      --

      Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws-Plato
    2. Re:Quiet PCs? by s20451 · · Score: 5, Insightful

      Hopefully soon the design will make it in to your home PC, allowing them to run much quieter

      Actually I find it odd that this is the first application that occurred to the poster.

      Gentlemen, this new motor design will make battery-powered cars a reality, reduce industrial energy consumption by a third, possibly save the world from global warming ... oh yes, and it will make your case mods mad 31337.

      --
      Toronto-area transit rider? Rate your ride.
    3. Re:Quiet PCs? by ciroknight · · Score: 3, Insightful

      That just goes to show how slow technology adoption rates has become. Ever since compact flash's invention and continual adoption in hardware, Hard drive volumes have increased amazingly. We went from densities of around 10gb when CF became mainstreamed to now having 250GB hd's ship in computers, and 350GB hd's available for purchase.

      That being said, none of the flash memory densities have really scaled like this, and are just being left in the dust, sadly. I'd love to have an iPod with a SD/MMC card reader so that I could exchange songs with a friend at school if they wanted me to listen to something really quickly, or so I could pull data off the iPod and put it into a computer.

      Speaking of putting an SD/MMC card into a computer, when will Dell start shipping memory card readers in their machines that have dumped floppies, or are they just going to chalk it up to rewriteable CD drives and abandon solid state memory cells altogether?

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    4. Re:Quiet PCs? by JPriest · · Score: 3, Interesting

      Magnetic assist motors have been around for a while. They have traditionally been written off as not worth the cost and energy required to charge the magnets. A more efficient design this could be, but a ground breaking change in the world? Probably not.

      --
      Saying Java is nice because it works on all OS's is like saying that anal sex is nice because it works on all genders.
    5. Re:Quiet PCs? by Stile+65 · · Score: 3, Funny

      Actually, assuming this is for real, we now have a source of free energy.

      With an input of 540 watts and an output of ~1.57 KW (when hooking the motor to a generator) all you need to do is split the output of the generator between the motor and some other load, and your generator is now powering the motor that drives it and up to ~1KW load. That's 1KW of free energy!

      I think it has a very high likelihood of being BS, but if it's not, then hell... I can't wait to see it! Live-off-the-grid time for me!

      --
      I claim first use of "Error No. 0B" - or "No. 0B error." It'll be the new ID 10T!
    6. Re:Quiet PCs? by Anonymous Coward · · Score: 3, Informative

      Bullshit. My IDE Barracudas are near silent, they're 7200 RPM--and I've got pretty damn good hearing.

      My Quantum Fireball drives, on the other hand, sound like turbo-prop airplanes taking off... But the Seagates are faster!

      If you're willing to spend $10 more, you can get a quality drive.

    7. Re:Quiet PCs? by Stile+65 · · Score: 3, Insightful

      By "very high likelihood" I mean "near certainty." Free energy... riiiight. :D

      --
      I claim first use of "Error No. 0B" - or "No. 0B error." It'll be the new ID 10T!
    8. Re:Quiet PCs? by nih · · Score: 3, Interesting

      if you use the anti-vibration mounts @ http://www.quietpc.com/uk/harddrive.php#hdrubbermo unts the noise vanishes, or you can get the heatpipe cooler @ http://www.quietpc.com/uk/harddrive.php#zm2hc1 , btw the mounts can be ordered separately, just mail them for info, its also best to attach a drive with the heatpipe cooler to the base of the case, temp went from 50c to 35c.

      --
      I'm a rabbit startled by the headlights of life :(
    9. Re:Quiet PCs? by w3weasel · · Score: 4, Informative
      or so I could pull data off the iPod and put it into a computer
      1.)connect your iPod
      2.)In terminal (on OSX) type "cd /Volumes"
      3.)type "ls" (your ipod (whatever you named it) will show in the list).
      4.)type "cd <your iPod's name>"
      5.)type "ls -a"
      6.)explore the folders whose names begin with "." (dot).

      all your music is in there. use "mv" as needed.

      I'm sure on windows, the command line, or at the very least, Cygwin can accomplish the same task
      --

      Just as irrigation is the lifeblood of the Southwest, lifeblood is the soup of cannibals. -- Jack Handy

    10. Re:Quiet PCs? by Just+Some+Guy · · Score: 4, Insightful
      Battery-powered cars arn't realistic because of power density issues with modern bateries.

      The claim is that the new motor uses 80% less energy (I assume they left out per unit of power). Ergo, an electric car would need 20% of the a current model's energy storage. If that is true, since a modern electric car is almost viable, then one built with this motor will absolutely be practical.

      --
      Dewey, what part of this looks like authorities should be involved?
    11. Re:Quiet PCs? by the+morgawr · · Score: 3, Interesting
      Motors are efficient enough (75-80% is typical for variable speed applications). Most of the losses involved are in storing and supplying the power. If you reduce input power to the motor by 80%, you just ended up with better then 100% efficiency, something that can't happen. See my post further down for my extrapolation of what this motor could actually be on a really good day

      To make a viable, sellable purely electric car, you need batteries that weight AT LEAST 1/4 as much and cost 1/10th as much as today's best.

      While we're at it, inventing power transistors that are nearly lossless would be nice, since switching losses are the other major diffuculty.

      --
      The policy of the United States is worse than bad---it is insane. -- Ludwig von Mises, Economic Policy(1959)
    12. Re:Quiet PCs? by p4ul13 · · Score: 4, Funny

      Marge: I'm worried about the kids, Homey. Lisa's becoming very
      obsessive. This morning I caught her trying to dissect her own
      raincoat.
      Homer: [scoffs] I know. And this perpetual motion machine she made
      today is a joke! It just keeps going faster and faster.
      Marge: And Bart isn't doing very well either. He needs boundaries and
      structure. There's something about flying a kite at night that's
      so unwholesome. [looks out window]
      Bart: [creepy voice] Hello, Mother dear.
      Marge: [closing the curtains] That's it: we have to get them back to
      school.
      Homer: I'm with you, Marge. Lisa! Get in here.
      [Lisa walks in, chuckling nervously]
      In this house, we obey the laws of thermodynamics!

      --
      Paul Lenhart writes words!
    13. Re:Quiet PCs? by rco3 · · Score: 5, Funny

      No, no, no. See, you just don't understand. He's using magnets. They have powers that you just don't understand.

      What'll happen is this. You'll have a 9-volt battery that you take with you when you leave for work in the morning. You use this battery to run a little half-watt motor (540 mW, according to the article). Now, clearly this isn't enough to move your car - but wait! This motor drives a generator, which makes 1.755W of output! (from the article). This still isn't enough, but we might be able to work something out...

      The 1.755 W drives a 1.7 W motor. This motor, in turn, drives a generator. This generator can generate 5.525 W of electricity. We'll use this energy to drive a 5.5 W motor. That motor will turn a generator, which thanks to the mysterious power of magnets will generate 17.875 W! Amazing!

      This still isn't enough to move your car very fast - but wait! We're not done! If we use our 17.875 W to drive a 17.5 W motor, it can drive a generator which produces 58.09 W!!! That's a lot of power! It's almost 1/10th of a horsepower! Next, we'll use that electricity to power a fancy 55 W electric motor, which (because the magnets have eternal power forever) can turn a generator producing 178.75 watts! Clean! Cheap! Quiet! With this power, we can operate an electric motor which in turn drives a generator generating an awesome 580 Watts of power! Using this electricity to drive another motor / generator pair, we can generate 1.888 kW of clean, wholesome electric power! It's amazing!

      Now, let's say we've got a 1.8 kW motor in the trunk. This motor drives another generator which produces 5,850 W of power - that's 7.842 HP in your trunk. We'll use the electricity to drive another motor, this time a 7.8 HP motor - notice we're allowing for (I^2)R losses - which in turn drives a generator. This generator puts out a whopping 18.85 KW of power - that's as much as 10 hair dryers! But, rather than dry all 10 of our passengers' hair at once (can't do *our* hair, we're driving!), we'll use that electricity to drive a 25 HP electric motor. This is a big motor, but not as big as it would be if it didn't use the amazing power of magnets! It can drive a generator that makes 61.26 kW of electricity, which let me tell you is quite a bit! This electricity will be used to drive an 82 HP electric motor - as much as a small electric car. But you don't want a SMALL electric car, nosiree Bob! We use that dinky-assed commuter-car motor to drive a honkin' big generator, which pours out a torrent of electrons - almost 200,000 watts worth! Yikes! That's enough electricity to drive a 265 HP motor! Wow!

      But why would we want a pitiful little 265 HP motor in our car? We're carrying 10 passengers, remember? Let's keep going! If we use that 198 kW to drive a motor/generator pair using Minato's incredible magnetic technology, we can generate 644 kW of clean, efficient electricity! That's enough to drive an 863 HP electric motor, which thanks to its use of magnets, can be as small as a gallon paint can - and just as quiet!

      Isn't this incredible? Using a single 9 volt battery - preferably an Energizer or Duracell - and 14 super-quiet, incredibly efficient electric motors along with 13 revolutionary electric generators, we're driving an 863 HP super monster screamin' machine with 10 passengers! We're passing Corvettes and Ferrarris like they're glued to the asphalt, and we don't need any gasoline to do it!

      Tune in next week, as I show you how it takes only 20 motor/generator pairs - using Minato's incredible magnetic technology - to generate 1.21 Jigawatts - twice! You can send TWO DeLoreans "Back to the Future" at the same time, and STILL have enough electricity to run that bangin' DVD player in your sun visor!

      Now, I realize that this all seems a bit hard to believe, but that's just because you don't understand the incredible power of magnets.

      --

      Ce n'est pas un vrai mouvement de robot!
    14. Re:Quiet PCs? by Rexz · · Score: 4, Informative
      In Windows you just need to set Explorer to show hidden files and you can drag-and-drop music from your iPod to anywhere else.

      There also exist many third party utilities for extracting music from iPods. These can be used to generate filenames, which the iPod often discards as it exclusively uses ID3 tags to populate its database.

    15. Re:Quiet PCs? by sprintkayak · · Score: 5, Informative
      From Gizmodo.com

      JOEL JOHNSON -- After reading the story about Kohei Minato's super-efficient motor, reader Chris Drake wrote in with this explanation:

      All Minato's power calculations appear to be wrong (apparently it's a common mistake many scientists make); you can't measure input power using a multimeter when the current drain isn't constant. You can see his workshop in his videos - all his calculations are done using common multimeters and a desktop calculator. Minato motors use an optical sensor to "switch on" the "stator" (electromagnet) for a fraction of each RPM, so he'd need an oscilloscope and some funky math to figure out how much current the motors are really sucking up (or a stopwatch; and wait for the driving battery to go dead, then estimate based on the battery capacity). It's still a super neat idea though - which seems to boil down to "drive motors from the outside using aligned permanent magnets and momentary pulses from the stator" instead of the traditional "sick the stator in the middle" idea.
    16. Re:Quiet PCs? by kfg · · Score: 3, Funny

      Now, I realize that this all seems a bit hard to believe, but that's just because you don't understand the incredible power of magnets.

      Have I mentioned before that the "free energy from magnets" people drive me frickin' nuts?

      Why yes, I believe I have. Several times in fact. And the only thing harder than trying to explain to these people why it doesn't work is trying to explain it to someone who's invested their life savings in the scheme.

      Hey, why didn't someone ever think of putting magnets in an electric motor before?

      Then all you'd have to do is figure out some way to switch the coils in sync with the rotation and you'd revolutionize the world!

      Muuuuahahahahaha!

      KFG

    17. Re:Quiet PCs? by Kris_J · · Score: 3, Informative

      I'd love to switch to a solid-state hard drive, but the number of write cycles before it dies is way too small. I guess you might be able to get away with it if you had a few Gig of RAM so you didn't need swap and you had room for a RAMdisk-based temp/tmp folder, but just putting a Flash-drive in place of your system's hard drive will cause it to fail within a few months.

    18. Re:Quiet PCs? by gl4ss · · Score: 3, Funny

      How stupid of you. You forget the battery charger for the 9v battery(and better use a rechargeable one), without that the landfills will soon be full of 9v batteries! THINK OF THE ECOSYSTEM!

      --
      world was created 5 seconds before this post as it is.
    19. Re:Quiet PCs? by srleffler · · Score: 5, Informative
      As long as he's using a constant voltage supply, the average input power can be calculated from the average current, which is what a standard multimeter will show if the current is fluctuating quickly and periodically

      This statement is wrong several ways. First, you probably mean RMS ("root mean square") current, not "average current". The average current in an AC signal is of course typically zero. AC multimeters display RMS current and voltage.

      Second, you cannot in general calculate average power from RMS (or average) voltage and current, even if the voltage happens to be constant and the current is somehow time-varying. The familiar P=VI formula is for instantaneous power, i.e. P(t)=V(t)*I(t). It happens that if the current and voltage are in phase (i.e. the load is purely resistive) then the average power is the product of the RMS voltage and current. This is a special case.

      Third, it is not that hard to get even a good multimeter to read a time-varying current incorrectly. They are designed for low frequency signals. If your current is time varying with even moderately high frequency (e.g. >1000 Hz) most multimeters will not correctly read even the RMS current. A poor multimeter might not even give an accurate RMS current for a low-frequency but non-sinusoidal signal.

      This is not the first time someone has produced a free energy device scam based on the faulty assumptions that P=VI holds for average values and a multimter always gives an accurate 'average' voltage or current, regardless of how complicated the waveform of the signal is.

  2. *MAGNETIC* fans in my PC? by Anonymous Coward · · Score: 4, Funny

    Uh, no thanks. :)

    1. Re:*MAGNETIC* fans in my PC? by T5 · · Score: 5, Funny

      You! Back to physics class!

      Exactly how did you think that an electric motor functions? The electrons don't line up all nice and pretty and start pushing the armature around and around. Their dizzying speed doesn't induce a partial vacuum that drags the armature around in its wake. No siree, Bob. They're enslaved to make a magnetic field that alternates attraction and repulsion against a set of fixed magnets.

      Magnets! They're everywhere! Argh!

    2. Re:*MAGNETIC* fans in my PC? by GigsVT · · Score: 4, Informative

      To the contrary, the magnets in your hard disk are the most powerful types of permanant magnets, rare earth magnets. They are very strong. A single hard disk magnet can usually lift at least 10 pounds, maybe more.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    3. Re:*MAGNETIC* fans in my PC? by Ralph+Wiggam · · Score: 5, Insightful

      I can't be the only Slashdotter to have cracked open a dead hard drive. Those magnets are very very strong. Could someone with a better physics background than I please explain how a drive based on tiny fluctuations in a magnetic field can operate next to such a powerful magnet?

      -B

    4. Re:*MAGNETIC* fans in my PC? by ron_ivi · · Score: 5, Informative
      Mod this guy up... This is a really strong magnet; and dead hard drives are an awesome source for refrigerator magnets.

      To your "how a drive ... can operate next to it"... I think this is the explanation.

      While a normal magnet

      N---S

      has a field that falls off at something like 1/R^3 or 1/R^4, you can arrange more than one that falls off even faster. I think like this:

      N---S
      S---N
      N---S
      S---N

      And extend it to 3-dimensions and it'll fall off even faster than that.
      That way the field will be super-strong next to the magnet, but super-week even a short distance away.

    5. Re:*MAGNETIC* fans in my PC? by hpa · · Score: 5, Informative

      First of all...

      The use of permanent magnets in motors has been common practice for over 20 years, since high-strength permanent magnet alloys became good enough.

      A permanent magnet contains stored energy from when the magnet was made. An electomagnet uses electricity on the fly. Note that one of the two magnets in a motor *must* be an electromagnet (usually the stator, for convenience of wiring, but occationally the rotor, especially in DC motors) since the motion requires a varying magnetic field.

      Speaking of DC motors: ALL motors run on alternating current in some form. In a classical DC motor, the alternating current is produced by the motion of the motor itself by having the electromagnet be on the rotor, and have the brushes leading the current onto the rotor brush against a "commutator" -- two half-cylinders back to back -- instead of slip rings. Unfortunately, this requires brushes, which wear out and are generally unpleasant to deal with. As a result, especially higher-power motors have generally switched to using brushless AC motors using electronic commutators.

    6. Re:*MAGNETIC* fans in my PC? by timmi · · Score: 4, Informative
      Have you ever tried to erase a floppy with a magnet? I have tried on several occasions and it is harder than you might think.

      to "Randomize" the magnetic "markings" on the disk, you need a Degausser. (Gauss being the pioneering physicist on the subject of magnatism.

      A Degausser is an electromagnet that creates a magnetic field that is constantly changing. that is what you need to "Randomize" the magnetic alignment of the particles on the disk in order to erase it entirely.

      For the record, I took a full, height, five-and-a-quarter hard drive apart, (I think it was on the order of 1 GB) and there were two extremely strong magnets in the head actuator mechanism. they were so strong that you couldn't pull them apart, you had to slide them, so they were kind of offset and twist them.

      I still use them to re-magnitize screwdrivers and bits

  3. Porcelain engine running on water by wawannem · · Score: 5, Funny

    Heh, This guy will soon end up in the oil company holding cell with the guy trying to make a porcelain engine that runs on water.

    1. Re:Porcelain engine running on water by azav · · Score: 3, Interesting

      Here it is:

      http://www.siscom.net/~louisekramer/index.htm

      --
      - Zav - Imagine a Beowulf cluster of insensitive clods...
    2. Re:Porcelain engine running on water by Oriumpor · · Score: 4, Funny
      wow... from the site

      I have been quite alone in both financial and hands on help with this engine project. I do not accept the 25 or even 35 percent efficiency of today's engines when we have the technology to do better. From 1974, the year of my first patent on this engine, the efficiency of engines has not changed very much. It looks like we will continue to waste, pollute, and fight over the growing oil problem. I add these bits and pieces to answer questions I have been asked. How do I know this or that about my engine when I cannot see inside to know at that instant what is really going on. The great God of Abraham, through Jesus Christ, by way of the Holy Spirit has poured out his Spirit on me concerning this engine and how it is to be handled. This is something I do not take lightly and I will do as God has instructed me.
      ... well er uhh... at least he's dedicated...
  4. Just to be clear.. by TechyImmigrant · · Score: 5, Informative

    "9.144 volts and 192mA output. 1.8 x 0.15 x 2 = 540mW input and 9.144 x 0.192 = 1.755W out. "

    So there's nothing real to be seen here. Move on.

    --
    Evil people are out to get you.
    1. Re:Just to be clear.. by The+Raven · · Score: 4, Insightful

      Absurd claims are the hallmark of junk science. Impressive though that this guy managed to dupe people long enough to sell many thousand units.

      I'm curious if the motor IS better than usual, just not to the extent claimed, or if it's ALL hoax. I cannot get to the site myself... japan.com surrendered to the /. nuke.

      --
      "I will trust Google to 'do no evil' until the founders no longer run it." Hello Alphabet.
    2. Re:Just to be clear.. by MyFourthAccount · · Score: 3, Interesting

      So there's nothing real to be seen here. Move on.

      But, "In Japan, no one pays for 40,000 convenience store cooling fans without being reasonably sure that they are going to work."

      And if that didn't convince you:

      Hopefully soon the design will make it in to your home PC, allowing them to run much quieter.

      Because we all know that the noise generated by the fan comes from the motor and not from air hitting the fan.

      How can you contradict such a logical and fact laden article?

    3. Re:Just to be clear.. by Anonymous Coward · · Score: 3, Insightful

      And did you read the claims of >100% efficiency? As soon as you see such claims you can stop. Period. It's a fraud. End of story.

    4. Re:Just to be clear.. by TechyImmigrant · · Score: 5, Insightful

      Yes, I read the article. It has all the signs of something that needs justly debunking.

      The 'no formal training' genius.
      Power out > Power in
      Use of the words 'over unity'
      A tale of skepticism from scientists
      Little guy vs. big guyes woes
      Failing to identify the 'fundamental force of nature' that is being harnessed.

      But in the end, you don't need to look futher than the violation of the laws of thermodynamics.

      --
      Evil people are out to get you.
    5. Re:Just to be clear.. by hey! · · Score: 3, Informative

      You are correct in your dismissal, however your calculation is only correct for DC or pure resistive loads.

      disclaimer: IANAP (I am not a Physicist)

      In an AC circuit is quite possible to measure an AC voltage and amperage which if multiplied give greater than the power input. The trick is that power is not equal to the RMS voltage times the RMS current if the voltage and current are out of phase. For example the peak current happens during off peak voltage and vice versa.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    6. Re:Just to be clear.. by Viv · · Score: 5, Informative

      Not quite right -- in an AC circuit, if you take ALL power into account, you'll always get equal power in and out. The key is that when the current and voltage are out of phase (as in an inductive or capacitive circuit), some of the power is "real" and some of it is "reactive". The real is measured in watts and the reactive is measured in "VAR"s. You can't use the VARs directly because they're the power that gets stored in the inductance and/or capacitance in the operation of the circuit.

      If you get a higher output power than input or a higher input power than output, it means that you forgot to check the reactive power :)

      Four laws of electrical science; there are no exceptions to these, ever:
      1. Voltage is equal to current times impedance
      2. The algebraic sum of all voltages in a loop is zero.
      3. The algebraic sum of all currents in a branch is zero.
      4. The algebraic sum of powers in a circuit is zero. (aka, power in = power out).

      If your measurements ever violate any of these laws, you either f*cked up, or you need to file a patent because you just found a way to violate a _law_ of electrical science. That's a big deal, like violating gravity :)

    7. Re:Just to be clear.. by Yobgod+Ababua · · Score: 3, Informative

      "Potential energy is not real energy (otherwise every single metal thing in the universe would have all of this energy corresponding to every magnet in existence)."

      Actually, every ferrous object in the universe does have a (usually very small) force being applied to it from every magnet in the universe.

      Similarly, every mass in the universe is *right now* exerting a gravitational pull on every other mass. Most of them are so small as to be insignificant, of course.

      In both cases, because of those forces, the "potential energy" (in this case it's perhaps more accurate to say "positional energy") of your object can be lowered by moving it closer to the magnet or large mass. That change in energy can be used to do work, like acceleration.

      All energy is real.

      "I have a magnet which I had when I was little, and it is now much weaker."

      This is a completely different effect, related more to entropy than to the expenditure of energy. (See below.)

      "Magnetism is an effect of small electric currents within the magnet; doesn't it stand to reason that when the magnet is used, it could lose power by disturbing some of those currents?"

      Not really. In the case of most permanent magnets the 'current' is really just a single electron circling it's atom. A noticeable magnetic effect comes when all the spinning electrons line up and all their infitessimal little contributions add together instead of canceling each other out. Naturally magnetic materials have the spins 'locked down' through various low-level physical and chemical mechanisms.

      This is why you can 'magnetize' a nail or needle by rubbing it on a magnet... the magnetic field will (temporarily) align the spins within the needle. Eventually, however, without some mechanism to lock those atoms in place relative to each other, the spins will wander off alignment and the magnetism of the needle will fade.

  5. Summary is wrong by theLOUDroom · · Score: 4, Insightful

    Hopefully soon the design will make it in to your home PC, allowing them to run much quieter."

    The noise in your pc is caused by air turbulence caused by the fan blades. Even if the motors inside your fans were 100% efficient, your computer would not be significantly quieter.

    --
    Life is too short to proofread.
  6. threat to national security by SQLz · · Score: 4, Funny

    Magnet power cars are a threat to national security.

  7. Definitely a violation by QuantumFTL · · Score: 5, Insightful
    This is probably already redudant, however the article says
    " Minato says that average efficiency on his motors is about 330 percent. "
    That's definitely violating thermodynamics. I do not understand how this is "news for nerds", however at least the editors should please put some kind of disclaimer that he is in fact claiming to break conservation of energy.

    Cheers,
    Justin
    1. Re:Definitely a violation by the+morgawr · · Score: 5, Insightful
      The article is fubar'ed beyond belief. Ignoring for a minute the obsurd thermodynamics claims, based off of the description of the motor, it seems like he's invented a very controlable reluctance motor.

      Asside: For those who arn't EEs you can use magents to spin things in various ways: induction, rotating fields generated by coils, reluctance, etc. Reluctance motors are 10-20% more efficient they their syncronous counterparts, but tend to be limited in size, hard to manufacture, and difficult to control. A lot of research has gone in to the different ways to make the magnetic stator to make the motor easier to make, control, and scale up.

      At best he's invented a particular rotor/stator combination that creates a really odd magnetic field that he can actually control. My guess is that the motor he has made runs syncronous after spinning up and that his particualar arangement of magents makes it possible for the motor to get enough torque to spin up at non-syncronous speed (i.e. start when you plug it in, and possibly give it a spin).

      IF this does work, IF he can get the reliability to the level of syncronous motors, IF it runs at a reasonable power factor, IF its reasonably EMC, AND IF it doesn't require complicated or expensive control mechanisms, he will have a good product on his hands. This would likely be used in a lot of factories, and in HVAC systems in cars. It's probably not that useful for speed control based applications (if it's a reluctance based motor, it's running at syncrous speed) so that excludes it from replacing induction motors and DC motors, unless it's so much more efficient that adding a variable AC supply to the control equipment leaves it still more efficient.

      Honestly though, I think the countless posts here are probably right: he invented something and only THINKS it works.

      --
      The policy of the United States is worse than bad---it is insane. -- Ludwig von Mises, Economic Policy(1959)
    2. Re:Definitely a violation by AdamInParadise · · Score: 4, Interesting

      Of course it is a violation. You can't get something for nothing. Energy is only transfered, it cannot be 'created'. Nuclear plants takes uranium and transform it into heat. A magnet is not a fuel because it does not contain energy. Magnetic fields decay because the material decays, not because they are 'used'.

      This definitely looks like a stupid scam.

      --
      Nobox: Only simple products.
  8. the truth will set you free by foosballhound · · Score: 3, Insightful

    question: wouldn't the magnets de-magnitize after a while? isn't that what physics would predict? good business opportunity tho. exchange the cost of electricity for the cost of buying a new motor, when the magnets stop working any physicists out there who can comment?

  9. What do you think turns the blades now? by raygundan · · Score: 4, Informative

    As opposed to what? Oh, wait, the ones that are in there are ALREADY magnetic. How do you think normal electric motors work?

  10. Porcelain engine running on water by AtariAmarok · · Score: 5, Funny

    Heh, This guy will soon end up in the oil company holding cell with the guy trying to make a porcelain engine that runs on water ...down the hall from the vault containing the Skynet microchips from the future, all those Tesla inventions that the government has been sitting on, alien car motors from Roswell, turbines that run on Orgone energy, and real working cold fusion.

    By the way, the porcelain engine with water? I've got one in my bathroom. It turns on when you flip a metal lever.

    --
    Don't blame Durga. I voted for Centauri.
  11. I'm looking at the pictures.... by idontgno · · Score: 3, Funny
    I'm trying to figure out how strong your cooler mounts will have to be in order to support about a cubic meter of "high-efficency motor." It's hard to judge, but it looks like about 20 or 30 Kg of motor to me.

    It'll need a big case, in any event.

    --
    Welcome to the Panopticon. Used to be a prison, now it's your home.
  12. Bullshit is this weeks magic word by Ckwop · · Score: 5, Insightful

    "Mention of Over Unity devices in many scientific circles will draw icy skepticism."

    Hmm.. Simple reason why. If you supply power to the motor using a carnot engine
    and use the power from the motor to drive a carnot refrigator.
    Then there will be an overall flow of heat from cold to hot..
    Breaking the second law of thermodynamics..

    Bullshit is word of the week.

    Simon.

  13. If you by ColaMan · · Score: 3, Informative

    Search for "over unity motor" on google , you'll find a heap of these.

    I always get suspicious when those sites say, "and my motor/generator at full load begins to get cold"

    --

    You are in a twisty maze of processor lines, all alike.
    There is a lot of hype here.
  14. Re:Conversely... by M.C.+Hampster · · Score: 4, Insightful

    Amazingly enough, if you had read the article before posting, you might have gotten your answer:

    With the help of magnetic propulsion, it is feasible to attach a generator to the motor and produce more electric power than was put into the device.

    That alone makes it sound fishy to me, but IANAP.

    --
    Forget the whales - save the babies.
  15. Measurement error or fraud? by Spamalamadingdong · · Score: 5, Interesting
    I could probably make a device that could take 16 watts in and generate 300 volt-amperes (AC) out - but the volt-amperes would be almost 90 degrees out of phase, and the power factor would be less than 5%. The real power out of the device would be substantially less than 16 watts. There is no way in physics to have more than 1 watt out per watt in, "magical magnets" or no. If the device was extracting energy from the magnets, they would be depleted and the device would run down after a while. That's 2nd semester physics, basic E&M.

    Either the proponents of this device are complete incompetents, or they are complete frauds. I'm inclined to believe the latter, as incompetents tend not to have the sales skills evident in the article

  16. Re:Conversely... by br0ck · · Score: 4, Informative

    The next few sentences after the one you posted cast even more doubt on the claim:

    Minato says that average efficiency on his motors is about 330 percent.

    Mention of Over Unity devices in many scientific circles will draw icy skepticism. But if you can accept the idea that Minato's device is able to create motion and torque through its unique, sustainable permanent magnet propulsion system, then it makes sense that he is able to get more out of the unit than he puts in in terms of elctrical power. Indeed, if the device can produce a surplus of power for longer periods, every household in the land will want one.

  17. Re:Right next to the disk drive... by raygundan · · Score: 5, Informative

    Is everybody here retarded? What did you think made your existing fan motors spin, Space Pixies? No, it's a freaking electromagnetic motor. Every single one of them. And there's that PC speaker up front with a big magnetic coil on the back that beeps everytime you turn your PC on, too.

    I though you were supposed to be nerds.

  18. Re:Impressive by Bronster · · Score: 4, Funny

    16 watts driving a 35 kg load. Thats the equivelent of a couple of C cells driving a golfcart around.

    Which is entirely possible - what they don't say is how slow it goes ;)

    What would be impressive is getting that golfcart from 0 to 100 in 6 seconds.

  19. Re:The question is... by MrRuslan · · Score: 3, Insightful

    This would not work in a traditional cumbstion motor but im sure there are was to implement it into large electric ones...imagine a fully electric car with 4 of these (one for each wheel) about 25 hourse power each and have them cmputer controlled for traction...imagine the performance ...and this type of car would probly run 3 times the distance of current electric cars ...then maybe alot of people would consider replaceing there current cars.

  20. Re:Amazing idea by BobTheLawyer · · Score: 5, Informative

    There are thousands of people sprinkled over the web who claim to do things with magnets that violate the laws of themodynamics; this guy is just one more.

    Extraordinary claims demand extraordinary evidence: this guy provides none.

  21. Re:I NEED MY LITHIUM!!!! by ncc74656 · · Score: 4, Funny
    Only 20% of the power of a conventional motor? The next glaringly obvious step is to figure out a way to make CPUs out of these motors. Rather than GHz, they would be rated on RPMs. Dell will market them as the "Magnetron".

    <voice style="scott-evil">

    Ripoff! Magnetrons are what make microwaves work! What'll they do next--put a "laser" on the moon and call it the "Alan Parsons Project"?

    </voice>

    --
    20 January 2017: the End of an Error.
  22. Re:In this article, we do not violate the laws by Enigma_Man · · Score: 5, Insightful

    Still incorrect though. Using this logic, you could hook one motor to another, using one as a generator. Take the power from the generator, and use it to power the first motor, which makes more wattage than you put in, which spins the armature faster, which makes more current... Until you have an infinitely fast spinning infinite energy generator.

    It's fake if this is true, I can't get to the article to verify myself.

    -Jesse

    --
    Nothing says "unprofessional job" like wrinkles in your duct tape.
  23. Dogs and cats by AtariAmarok · · Score: 3, Funny

    What will come next, dogs mating with cats?!?!

    Venkman: "Or you could accept the fact that this city is headed for a disaster of Biblical proportions."
    Mayor: "What do you mean, Biblical?
    Ray: "What he means is Old Testament, Mr. Mayor. Real wrath-of-God type stuff. Fire and brimstone coming down from the sky. Rivers and seas boiling."
    Egon: "Forty years of darkness, earthquakes, volcanoes."
    Winston: "The dead rising from the grave."
    Venkman: "Human sacrifice, dogs and cats living together, mass hysteria."

    --
    Don't blame Durga. I voted for Centauri.
    1. Re:Dogs and cats by p4ul13 · · Score: 3, Funny

      RAY: Everything was fine with our system until the power grid was shut off by dickless here.
      WALTER PECK They caused an explosion!
      MAYOR: Is this true?
      VENKMAN: Yes, it's true. This man has no dick.

      --
      Paul Lenhart writes words!
  24. CompactFlash by tepples · · Score: 3, Interesting

    didn't I read back in 1993 that we'd all be using solid state hard drives by now??? Guess that was a sure thing in the days of $600 hard drives.

    Pricewatch.com tells me I can get a CompactFlash card reader for USB for under 20 USD and a 2 GB CF card for under 200 USD. There also exist adapters to plug CF cards into ATA cables. It seems that the desire for more capacity in a 3.5" desktop HD enclosure has outpaced the desire for larger persistent solid-state memory in desktop machines.

  25. Re:Possibly not... by BobTheLawyer · · Score: 4, Interesting

    What's to say it isn't powered by giant invisible lamas?

    There is no "interesting anomaly", there's just a claim phrased in the language of junk science. We don't find new models for physics on the basis of undocumented, unreviewed, unrepeated claims.

  26. Produces more energy than it consumes.... by alphorn · · Score: 3, Insightful

    motors uses 80% less energy than a conventional motor

    A conventional electric motor motor uses at most 1.6 Joules of electric energy to produce 1 Joule of motion energy (German Wikipedia). If you reduce that by 80%, you use only 0.3 Joules to produce 1 Joule... nice perpetuum mobile.

  27. Magnetic Forces do No Work! by borisonanovitch · · Score: 3, Insightful

    I have seen a few posts about "basic physics" and how the magnets would have to "demagnetize" to do work. But in actuality, basic physics says that magnetic forces can do no work. Why? Force = v x B (velocity of charged particle cross magnetic field) and work is the integral of Force dot dr. v cross B dot dr is 0 (because v and dr are in the same direction and the cross prod. of v and B will be perp. to v).
    So the permanent magnets don't do ANY work. They can accelerate charged particles by changing their directions, and maybe they can increase efficiency by reducing friction somehow (like maglev trains). But they are not putting work into the system.
    Greg

  28. Toyota Prius by AtariAmarok · · Score: 5, Funny

    The Toyota Prius already gets 60mpg in the city. Imagine the gas mileage these cars could get if they used one of these motor

    If I calculated correctly, not a Toyota Prius outfitted with one of these motors would excrete 1.3 litres of gasoline every 20 miles. (it is beyond a matter of getting "great gas mileage": the car would put out more gasoline than it takes in).

    --
    Don't blame Durga. I voted for Centauri.
  29. Re:In this article, we do not violate the laws by DetrimentalFiend · · Score: 3, Insightful

    Ok, if the input is less than 1/3 of the output, then he just discovered a machine that, if the output was looped to the input, would create infinite energy in theory. That is obviously impossible. It sounds interesting, that input and output ratio is not possible. Just because the guy gives you a reason why it's possible doesn't mean that it's true.

  30. Geek.com Commenters Already Ripped This Apart by bcolflesh · · Score: 3, Informative
  31. This is perpetual motion in another guise.. by the_rajah · · Score: 5, Funny

    I worked as a patent consultant briefly and in a short time saw a couple of perpetual motion schemes. The most elaborate was proposed by a bank security guard and involved a hydraulic pump and motor combined with an electric motor and generator.

    I explained that energy in a system worked like a bank account (bank guard -remember?) You put energy in and you can take it back out, but you can't get quite as much back out as you put in because there was a service charge in the form of friction. He begrudgingly understood. I complemented him on his nice drawings.

    "In this house we obey the law of thermodymanics" - Homer Simpson

    --


    "Do the Right Thing. It will gratify some people and astound the rest." - Mark Twain
  32. Re:Different violation by QuantumFTL · · Score: 4, Informative

    It's not violating any laws of thermodynamics, it's violating the law of conservation of energy.

    If you attended college, I'd ask for a refund. The first law of thermodynamics *IS* conservation of energy. Check out this.

    That being said, this device definitately violates it.

    Cheers,
    Justin

  33. Re:In this article, we do not violate the laws by Golias · · Score: 5, Insightful
    "I'm simply harnessing one of the four fundamental forces of nature," he says.

    This is the exact same argument every peddler of perpetual motion machines uses to claim that his invention is not a perpetual motion machine, but is somehow harnessing external power which is just hanging around out there to be used.

    The Earth's electromagnetic field is a popular choice among these hucksters. With this guy, it's magnets.

    The very fact that this showed up on the front page of /. shows that they've given up all pretense of caring what they publish here.

    --

    Information wants to be anthropomorphized.

  34. Easy. by 2names · · Score: 5, Funny
    You just have to put in a magnetic field damper.

    You can get them at Radio Shack.

    They are on the same shelf as the Flux Capacitors.

    --
    "I'm just here to regulate funkiness."
  35. Re:Right next to the disk drive... by flamingweasel · · Score: 5, Funny

    Is everybody here retarded?

    You're new here, aren't you?

    --
    Cthulhu loves you.
  36. fucking dumbasses! by bbay · · Score: 3, Insightful

    Why the fuck is this crackpot on slashdot?

    The claim that the extra energy is coming 'from permanent magnets' is risible. It's like claiming to extract energy from the gravitational field of the earth.

    MAYBE he has a very efficient motor (though I haven't seen any independant evaluation of that claim). But he certainly doesn't understand how it works, and his claim that he can extract more energy from a motor-generator configuration than he put in is obvious fraud.

    I'm not sure what's worse, that the journalist who wrote the article is so credulous, or that the people here (who should damn well know better) are.

  37. Re:That depends... by Laur · · Score: 4, Informative
    If you levitate one on top of the other, the magnets are doing work in the form of a repulsion of the magnet on top (It's tendency will be to fall per gravity's attraction)- they're doing work at a rate sufficient to hold the magnet airborne a given distance.

    Wrong, you need to review your physics a bit more. Work is defined as force times distance, W = F * d. Since the levitating magnet is not moving, no work is being performed. A levitating magnet is simply a balance of forces, nothing more. It is exactly the same as putting the magnet on a table (gravity provides a downwards force, the table exerts an equal force upwards).

    --
    When you lose something irreplaceable, you don't mourn for the thing you lost, you mourn for yourself. - Harpo Marx
  38. Re:In this article, we do not violate the laws by ThosLives · · Score: 3, Insightful
    Well, I can't read the artcile (durn /. effect) but I have actually done a lot of work trying to develop machines of this nature. While it looks like the machine is outputting more energy than is put in, what *must* be happening is one of the following:

    1. Conservation of energy is not true. Highly unlikely.

    2. The energy stored in the permanent magnets is being used up. This is the most likely (and probably actual) phenomenon. Any magnetic field has stored energy. You can get this energy out by demagnetizing the magnet. I don't know how much energy is in these magnets, and as I can't read the article I can't see if there are any comments on the longevity of the magnets. My guess is these motors would "work" for a while, then suddenly drop down to worse than normal functioning electromotive devices (due to adverse effects of eddy currents, etc). I'd put my wager here. (Especially since it sounds like it only works with large (i.e., lots of stored magnetic energy) magnets.

    3. The device somehow draws energy from the environment in some new, undiscovered manner. The combination of moving electromagnetic fields could somehow convert some other energy source (i.e., background radiation) into mechanical forces. Highly speculative and unlikely. If the device were really "creating" energy from the magnets, you could start one up, turn a generator, start another one up, then chain the output of the generator to the input of the motor, then keep them going forever. That would be a neat experiment.

    In summary, there is probably a well-understood phenomenon here, and it's nothing out of the ordinary. I applaud the marketing prowess of the "inventor" here, in any case. If the device does work, I look forward to seeing the interesting results as the basic conservation laws are reexamined and we end up neat things like warp drives, levitation, and all the other stuff I've wanted since I was 4!

    --
    "There are a dozen opinions on a matter until you know the truth. Then there is only one." - CS Lewis (paraprhase)
  39. Re:In this article, we do not violate the laws by microwave_EE · · Score: 5, Interesting

    I suppose that if he's quickly depleting the stored magnetic field on the permanent magnets that he could get out more electrical power than he put in, but that would only work for a couple rotations of the ol' motor. Aside from that, it don't matter which of the "four fundamental forces of nature" you harness, there ain't no cheating the laws of thermodynamics, even in convenience store cooling fans...

    --
    I'll take you to the ball, Barbara Manitee!!!
  40. Judge for yourself by Martin+Blank · · Score: 5, Informative

    US Patent 4,751,486

    US Patent 5,594,289

    Note that I'm not speaking for or against his claims, but if you want to see how it works, there you go.

    --
    You can never go home again... but I guess you can shop there.
    1. Re:Judge for yourself by CatGrep · · Score: 4, Insightful

      Just because the US Patent office issued a patent for this nonsense doesn't mean that the underlying physics is sound... After all, the US Patent office will grant a patent for anything as /.'ers are well aware.

    2. Re:Judge for yourself by FattMattP · · Score: 4, Funny

      Great. Two US patents. Now I know that it's a sham!

      --
      Prevent email address forgery. Publish SPF records for y
  41. I call Shenanigans by DumbSwede · · Score: 3, Funny
    SCAM!

    This sentence pretty much tells you this is another perpetual motion hoax:
    With the help of magnetic propulsion, it is feasible to attach a generator to the motor and produce more electric power than was put into the device. Minato says that average efficiency on his motors is about 330 percent.
    Wooo-Hooo we can replace coal, oil and nuclear by just string these things together like Christmas tree bulbs!

    The other clue that this is a scam is the entourage of bankers and investors to the demos, not physicists and engineers.
    Joining us are a middle-aged banker and his entourage from Osaka and accounting and finance consultant Yukio Funai. The banker is doing a quick review for an investment, while the rest of us just want to see if Minato's magnetic motors really work. A prototype car air conditioner cooler sitting on a bench looks like it would fit into a Toyota Corolla and quickly catches our attention

  42. Re:In this article, we do not violate the laws by Suidae · · Score: 4, Insightful

    4. Someone doesn't know how to measure actual power correctly.

    5. Someone is deliberatly measuring actual power incorrectly so he can sell crappy motors for more than they are worth.

  43. Magnets wooho! by dj245 · · Score: 4, Insightful
    The mystefying power of the magnet is a strange and powerful thing. People seem unable to grasp properly an invisible force that comes semingly from nowhere, leading to rampant fraud and mislabeling of properties. Just look at fraudelent "medical devices" that are nothing more than wee little magnets in a convenient strip. Do they do anything? Studies are a little hard to come by since the placebo group and study group will know almost immediately which ones they are. Even in complete isolation, it wouldn't take long before they stuck their magnet bracelet to the hospital bed, door, etc.

    Magnets, to many people, can explain anything, becuase they do not understand them properly. Just as you can not construct a perpetual motion device using magnets, however, you cannot raise efficiency using magnets as an energy source. Magnets can only raise efficiency by acting as frictionless bearings, but that is not the case for these motors. This is blatant fraud, and I cannot believe these people fell for it.

    --
    Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
  44. Re:In this article, we do not violate the laws by tverbeek · · Score: 5, Insightful
    The very fact that this showed up on the front page of /. shows that they've given up all pretense of caring what they publish here.

    Or they think that pointing out incredible claims for scrutiny is a good way to test them. Note the "from the skeptical-eye-on-the-science-guy dept." tag on the article rather than, say, "from the holy-shit-give-this-guy-a-Nobel-quickly dept."

    --
    http://alternatives.rzero.com/
  45. You forgot the savings account by lcsjk · · Score: 4, Funny

    You can get out more than you put in. Maybe this new motor works like a savings account. (Yeah, I know, the "extra" comes from somewhere else!)

  46. Re:Amazing idea by Hans+Lehmann · · Score: 4, Insightful
    This is perhaps one of the most amazing devices I have read about recently

    And for this you got +5 Informative?? Are there actually that many people on /. that would for even one moment believe that this device actually does what the "inventor" claims.
    There have been hundreds of these bogus devices trotted out in the past. They never quite seem to work, but the inventor always promises that it just needs a little more tweaking, once he gets enough investors lined up. Not one has ever accomplished anything beyond emptying the wallets of the suckers that invest in these scams.
    Minato doesn't sound like he's just made a measurement error, he sounds like a fraud. The fact that he fooled the reporter doesn't make his invention any more real.

    --
    09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
  47. Re:Right next to the disk drive... by raygundan · · Score: 4, Funny

    You're mistaken. Most of the Space Pixie Smoke is actually inside capacitors. You typically only get to see it released when the electrolyte is crap, or when you wire things up wrong.

    Computer chips contain very little space pixie smoke, and must be heated to staggering temperatures to get it released. I did, however manage to make a UV-erasable PROM glow (UV erasable chips have a little window in the top so you can see the actual chip through the case, and thus expose it to UV) once by accidentally connecting the power supply to one of the data pins. Just like a little lightbulb, all those tiny circuits worked nicely as a filament.

  48. this article deserves the foot, not einstein by scrytch · · Score: 3, Insightful

    Slashdot insults Einstein's memory by regularly posting junk science articles with his image attached. But of course, they don't actually write the articles .. or submit them .. or proofread them .. or fact check them ..

    What do they draw a paycheck for again?

    --
    I've finally had it: until slashdot gets article moderation, I am not coming back.
  49. Re:Possibly not... by Mateito · · Score: 3, Funny

    > What's to say it isn't powered by giant invisible lamas?

    Llamas as in the South American camel?

    I've been in South America for 5 years, and if there are any invisible llamas here, I certainly haven't seen them.

  50. Re:In this article, we do not violate the laws by cardshark2001 · · Score: 3, Funny
    I could make the argument that you too are a huckster, since you repute them with no clear evidence of their logical phallacy.[emphasis mine]

    Erm.... the word you're looking for is fallacy. I suppose your invented hybrid word might mean "mistake with a penis", as in "Bill Clinton commited lots of phallacies".

    But then, you are an AC so maybe it was on porpoise.

    --
    WWJD? JWRTFA!
  51. "feel her up in assembly" by raygundan · · Score: 3, Funny

    "and that caroline let frank feel her up in assembly"

    Man, you had to do that in assembly? I would think a compiled language would be easier, but still not as easy as just using your hands and the more traditional analog interface.

  52. Real Electric Motor News by fishybell · · Score: 4, Interesting
    If you really want to know about breakthroughs in electric motor design, not just another free-energy scam, mosey on over to http://www.rasertech.com/.

    Raser Technologies recently (ie within the last year) introduced technology to convert existing electric motor designs to run not more effeciently, but more powerfully. Their patented (with a real US patent) design allows a motor to produce up to three times as much power than previously achievable. All electric motors can be "overdriven" to provide more power in short bursts. This technology (which they dub Symetron) allows the motor to run at those higher powers at a sustained rate without burnout or explosion.

    Unlike Kohei Minato, Raser Technologies has been to various trade shows, hosted several demonstrations and posts results done by 3rd party test facilities. Also unlike Japan Magnetic Fan Company, Raser Technology is a publicly traded company under the stock symbol RSTG.OB.

    Although not as revolutionary or jaw-droppingly-fake, this new technology does have a huge amount of practicle applications. For example, currently to run an electric car you need about a 50-HP motor. Here's an example of how big a motor that's rated for 50 horsepower continious usage can be (610 lbs). A counterexample would be this video from a trade show where Raser Tech runs a bus on 500 horsepower motor that is noticably smaller.

    Yes, these motors still have the same efficiency rating as the motors without the Symetron adjustment, but they are extremely small for their power ratings. The key is truly the power density.

    --
    ><));>
    1. Re:Real Electric Motor News by Technician · · Score: 4, Informative

      You are comparing a high frequency motor with a 50 or 60 cycle motor which needs a lot of iron to provide enough reactance. Simply changing the frequency changes the amount of iron needed. A great example is take an old fashioned power supply with a 60 cycle transformer of about 100 watts. The transformer will weigh several pounds.
      Now compare it to a modern switch mode power supply typicaly used in a laptop computer's power supply. They typical also use a iron core (powdered iron) and copper wire just like it's 60 cycle counterpart. It still provides the 100 Watts of power but due to the 50 thousand cycles it runs, the amound of iron needed to provide reactance is much less. Because the core is smaller, the windings can be shorter to reach around a smaller core. Shorter wire means less wire IR squared losses. Now a 100 watt transformer is smaller than a golf ball and makes less heat. This is the simple reason 60 cycle power is not used on airplanes. 400 cycle power is typical. Motors and transformers are much smaller for the same power.

      Comparing a 60 cycle AC 50 horse motor with the high frequency ac motor used in the new Toyota Prius will show a huge size and weight diffrence even though the horsepower is close to the same.

      Taking a 2 phase DC fan motor and going from 4 pole to say 32 pole at high frequency will increase the effeciency of the motor simply because less iron and wire are needed in the windings.

      Large electric motors typicaly have effeciencies of over 80% Don't expect the breakthrough to triple the output of an 80% effecient motor. It can't. Small inefecient motors can see vast improvents in effeciency however. Good examples of low effeciency small motors are vaccuum cleaners, electric drills, skill saws and such that get hot.

      --
      The truth shall set you free!
    2. Re:Real Electric Motor News by lastninja · · Score: 3, Informative

      Car companies are very conservative, they don`t want to ship new cool things because if things don`t work as advertised or an accident occurs they get sued for large amounts of money. All the car companies want their competitors to try out new and potentially dangerous components. If you have a new technology and you think that a car manufacturer will be interested in it prepare to wait 10 years for evaluations( that you will more than likely have to fund yourself).

      --
      John Carmack fan, browsing at +5 since 1999.
  53. Not so gigantic a field... by name_already_taken · · Score: 3, Interesting
    The transformers and other inductors inside a modern PC power supply are quite small in comparision to the monster lumps of iron and copper found in the inefficient 1970's style linear power supplies.

    Additionally, the metal case of the PSU acts like a Faraday cage and keeps most of the magnetic fields inside the PSU, but it is mainly there to keep you from electrocuting yourself (PCs are one of those few items of consumer electronics that the consumer is expected to open up at some point).

    You'll note that all of the coils in a transformer are wound together closely - this is due to the strength of magnetic fields decreasing rapidly (faster than the inverse square law) as you move away from the source. You can't seperate the coils by much distance and "transfer all the hundreds of watts your PC needs through the air as a magnetic field". It just doesn't work like that.

    There is some electromagnetic noise from the power supply, but not very much really. Open up a piece of consumer electronics (like a Tivo or CD player for example) and you'll note that they didn't even bother to put any shielding around the PSU, because the magnetic field strength coming from it is really weak. How do they get away with it? The fields just aren't that big that they cause any problems with modern digital electronics.

    Open up a dead hard drive sometime and you'll find two really really strong magnets and an electromagnetic coil in the head actuator assembly, adjacent to the sensitive magnetic media. How do they get away with it? Simple, the field is really quite small.

    Unless your power supply includes the type of electromagnet used on a scrapyard crane, I wouldn't worry about it - the field is much smaller than you might think.

    --
    Putting moderation advice in your .sig lowers your karma!
  54. You're bang on. by Annirak · · Score: 3, Informative

    Actually, you're right. Simply put, (and I am oversimplifying this) the shrouds you always find around the *pairs* of magnets effectively contain the magnetic field.

    Try taking the two halves of the magnetic assembly in the hard drive and putting them together like how they are when mounted in the drive. Now bring your favorite piece of non-magnetized ferromagnetic material near the magnet pair. You should notice that there's virtually no attraction.

    Now, put your ferromagnetic material *in the gap* between the magnets--you know, where the head positioning coil goes--and you've got a *huge* attraction.

    The field exists almost exclusively between the magnets because of that magnetically conductive shroud around the outside of both the magnets.

  55. Magnets store practically no energy by DarkMan · · Score: 4, Informative

    Magnets, particulalry permenant magnets, are indeed a reservoir of magnetic potential energy.

    This energy is small. Like, really small. I'm involved with calculations on magnetic materials, and we typically use units of meV (milli electron Volts) for a magnetic interaction coefficent. That's 1.602 x 10^-22 Joules. Values are typically between around 2 up to maybe 30. Might be higher with the special rare-earths, dunno.

    Iron has 8 interactions per atom. Thus, a magnetic energy of the order of 2 * 10^-20 J per atom. One mole of iron will therefore have of the order of 2 * 10^-20 * Avagadro's number = 2 * 10^-20 * 6 * 10^23 = 12 * 10^3 J. That's 12 kJ of magnetic energy, in 55g of the stuff. [0]

    So, a post about says that the moter has a discrepancy of 1.2 W (can't get to the article myself). With 55g of iron permenant magnets then, that's enough to run that system for 10 000 seconds. Might sound a lot, but that's 2.7 hours. If I'm within an order of magnitude, that's a runtime of the system of around a day at most, assuming 100% conversion of the magnetic energy into rotational energy. [1]

    No. There is not enough magnetic energy in the parmenant magnets.

    [0] In fact, I think that you could only get 1/2 of that out. Still, I'm ignoring that, cos I think that this is only within an order of magnitude.

    [1] Which I doubt. A lot. In fact, I've never seen any suggested method for doing that.

    1. Re:Magnets store practically no energy by DarkMan · · Score: 3, Informative

      Yes, those magnets are exerting a force on each other.

      No, that force doesn't 'come from nowhere' any more that the between my desk and my monitor 'comes from nowhere'

      Yes, a permentant magnet will lose the observed properties (the macroscopic dipole). Eventually the magnetic domains will end up cancelling each other out. It's a relativly slow process (years typically to noticability, at room temperature), even in the situation you give (opposed magnets).

      The fallacy in your logic is to assume that a static force and a force with motion are the same thing. They are not.

      Consider the monitor on my desk (or yours, if that's simpler). There is a force from the desk on the monitor holding it up (other wise, it would fall to the earth, due to gravity). Work done is force * distance [0, and thus, as the monitor is not moving, no work is being done. Now, if you move that monitor, work is being done.

      Thus it is with magnets - In this case, if the magnets are permentant, there is as much total force forward as backwards, during a full rotation. If the elecromagnets are use to push the ring round, then that is the source of energy.

      [0] for a constant force.

  56. whatever... it's a hoax by slazar · · Score: 5, Interesting

    This guy is putting energy into the machine every time his magnet moves. Attach it to a fixed position say with a clamp and it would not work. Take a look at this video of Minato and then read the explanation here. You will need to search in your browser for minato because the page is long. Also you have to wait for the avi to completely download.

  57. Prfft... by adamofgreyskull · · Score: 5, Funny

    A U.S. Patent? Shit, I got one of those in my cornflakes this morning. :o)

  58. It's one of Bearden's"Japanese Overunity Engines"! by GPS+Pilot · · Score: 4, Informative

    Lt Col Tom Bearden (US Army, retired) has been predicting this since 1995.

    It's fascinating to read Bearden's views. He claims that what we know as Maxwell's Equations are actually gross oversimplifications, made by Heaviside, of the real Maxwell's Equations -- and that a lot of amazing physics would be possible if we would go back and exploit all the possibilities in the real Maxwell's Equations. Heaviside's "arbitrary crippling" of Maxwell is basically the reason we haven't yet colonized Alpha Centauri.

    There is a lot of overlap between Kohei Minato's research and Bearden's. Bearden made quite recent comments about Minato's motor.

    By the way, Minato's invention is called the "MagMotor." Does anybody know whether this is related to the Magmotor Corp. of Massachusetts?

    --
    That that is is that that that that is not is not.
  59. Re:Space Cakes! by rcw-home · · Score: 4, Funny
    Please: find for me the mathematical proof that airplanes can actually fly.

    You'll need a piece of letter or A4-sized paper and a sharp new #2 pencil to complete this proof.

    Take the paper, and fold it in half lengthwise, then unfold. Turn the paper upside down so that the crease is pointing up. Rotate the paper so that a short side is closest to you (perpendicular to your eyesight). Take each of the corners furthest from you and fold them back to the crease at a 45-degree angle, leaving a point at the end of the crease. Fold the previously folded area towards you. Take each of the corners furthest from you and fold them to the crease, one centimeter shy of the point. Fold the point away from you. Turn the paper upside down. Fold it in half along the original crease. Orient the paper so that the original crease is towards you. Fold towards you on an imaginary line connecting the corner on the folded side that is furthest away from you with a point approximately three centimeters away from the original crease on the unfolded side. Flip upside down and repeat. Pick up the paper and relax the last two folds to a 90-degree angle.

    Throw gently.

    Eat the pencil.

    Oh, you wanted a mathematical proof? You should have presented a mathematical assumption.

  60. rasertech by TubeSteak · · Score: 5, Interesting
    i watched the video and i'll give them credit for having a good PR dept. BUT I can't seem to find a decent explanation of WTF they're doing thats so special.
    From the FAQ
    Q. How does the Symetron(TM) technology deliver better performance?
    A. Symetron(TM) motor technology is based on our work in advanced motor theory which is the basis for several proprietary design innovations that achieve dramatic increases in torque and power.

    Q. Can the Symetron(TM) Motor technology be copied or pirated easily?
    A. The Symetron(TM) motor technology is clearly unique compared to other electric motors. It is based on proprietary scientific principles with Patents applied [for]. No imitation motor can be built without direct infringement on patents.
    Translation:
    We know something you don't know
    &
    Yes, but we'll sue them

    What worries me are phrases like "proprietary design innovations", "proprietary scientific principles", "strict confidentiality agreement", etc. I read their Press Briefing, which left me more and less satisfied. The best i can piece together is that they've got better cooling, some special design tweaks and a "means for increased magnetic energy storage" The deeper you go the curioser it gets...

    Just for shits and giggles they make almost the same claims as our Japanese friend. "300% more power" anyone? Their SEC filings make for veryinteresting reading. they've only spent 600K on R&D since raser's inception, they haven't obtained patents yet (only applied for them), "Raser's auditor's report contains a "going concern" qualification", "Our officers have no long-term experience with electrical motor sales"... I just can't understand... If their tech is so mindblowing how come it isn't everywhere?

    --
    [Fuck Beta]
    o0t!
  61. Re:Definitely a violation? by juhaz · · Score: 3, Insightful

    Of course there's always a change something we don't know is going on, but the unfortunate fact is that 999999 cases in a million it's a crook. Besides, it's very easy for this guy to prove his claims.

    If he hooks up the miracle motor to generator and uses that generator to power up the motor and it keeps running (should be easy with 330% efficiency, you can also draw infinite amount of energy from the circuit while at it) then he has either found the invisible and so far unexplainable power source or has proven that laws of thermodynamics don't work and perpetual motion machines are possible, you can bet that million physicists will swarm in to observe it and everything we though we know will be turned upside down. He'll also be worlds richest person in no time.

    Carefully observe how he fails to do that, and instead relies on (probably wrongly calculated or rigged) simple electrical meter. Now ask yourself why? Simple answer: because it doesn't work, and this is nothing but a con.