Magnetic Industry: Taking Strides
What are magnets? According to the Webster Dictionary, a magnet is a body having the property of attracting iron and producing a magnetic field external to itself or a mass of iron, steel or alloy that has this property artificially imparted. Magnets are used for various purposes like magnetic recording tapes, credit and debit cards, television and computers, speakers, microphones, compass toys etc. The greatest contribution of magnets has been in the fields of electronic, chemical, mining, automobile, medical and food processing industries. Magnets were initially manufactured by and used in the West, but as technology increased and developing countries started taking part in the industrial and electronic revolution, the use of magnets spread to all areas of the world, be it Africa or Asia. The increasing population of these areas, meaning increased labour, along with the emerging government policy of various countries combined with low labour costs and big internal markets have made the Asian and African regions on par with the West.
Different types of magnets are now being used for different types of industries. The funnel magnet, a magnet enclosed in a cylinder and consisting of permanent anisotropic magnets like ferrite or rare earth magnets, useful in the removal of iron impurities from any liquid, is used in the ceramic, oil, colours and magnetic industries. Magnets are used in Magnetic Resonance Imaging (MRI scans) in hospitals. In the electronic industry, magnets are used extensively. Magnets help in the working of televisions by scattering electrons towards various parts of the screen. Computer screens work on a similar principle as that of television whereas the storage disks used inside the computers have tiny magnetic fields which help in the storage of data.
The magnet industry has gained immense popularity in the market. Magnets are an essential part of any electronic, automobile, chemical and many other major industries. According to the 2005 census, the global market of magnets was around $ 7.6 billion. The market of magnets is expected to grow from .1 billion to .8 billion, at an average growth rate of 7.8% per year. Maximum growth of the magnet industry is expected in countries like India, China, Russia, Taiwan, Indonesia and Mexico, basically in the developing countries.
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Why won’t a permanent Magnet Motor work?
I was talking with a friend of mine the other day about being able to replace electro magnets in a motor with permanent magnets, with the intent of driving a generator to produce electricity. He was quick to say that it was impossible (He’s an engineer) to produce over parity. I asked why and he answered because it defies physics. I took a pencil and four magnet’s off of his desk taped 3 magnets to the pencil and set it on his tape dispenser and held the fourth magnet to it and the pencil began to spin. I asked him “if I can do this in 3 minutes with stuff off of your desk, do you really think people with the intelligence and resources of say M.I.T. couldn’t produce a spinning shaft with enough magnetic force to turn a generator shaft?” Also I saw a demonstration of the Meissner effect that looks very close to what I am talking about on a smaller scale. And here is a link to a patented permanent Magnet motor I found. So what do you think?
http://www.rexresearch.com/johnson/1johnson.htm
Old Prof- You are correct I did move my hand, should have included that , however it seems like multiple magnets in the correct array around the shaft would produce the same effect. Thanks for your input.
If you are talking about a motor with nothing but permanent magnets, your friend the engineer is correct. It can’t be done. And I doubt very much your recount of the pencil motor experiment.
Once one of the three magnets on the pencil aligned with the fourth in your hand, it would stay there. There is nothing to move the next magnet on the pencil to align with the stator magnet and concurrently pull the aligned pencil, rotor magnet off the fourth stator magnet in your hand.
Unless, of course, you moved your hand and the stator magnet. That would move the rotor, but only so far as you moved the stator magnet. Perhaps a fairer experiment, to preclude moving the stator magnet, is to find a way to fix it above the pencil without holding it in your hand.
Electric motors work because they provide a change in electro-magnetic flux. In a simple DC motor, for example, the rotor starts to align with the stator coils on either side.
Then, just as the rotor is aligned, so it would stay there without a change in polarity, the stator changes polarity so the rotor passes on through and is propelled to align in the opposite direction. That cycle continues with each half rotation of the rotor; and that’s what propels it and makes it a motor.
So, what I think, you need to go back to the drawing board.
Do Magnet Motor Works? ?
I’ve seen videos demonstrating the possible applications of this technology and it runs. Can it be trusted as a permanent device?
Mine is still running. OK, just kidding, the answer is NO.
Can anyone explain to me why the OC MPMM Magnet Motor or “Whipmag” All-Magnet Motor doesn’t work?
In high school I thought of some sort of magnetic motor that would “perpetually” spin. However I have neither the time nor resources to experiment myself. Some claim that they have made one. Others say it is fake. Is there a reason why it wouldn’t work?
The reason is that magnetic force can’t be switched on and off like an electric current. Magnets repel and attract with the same force, so you can’t get an unbalanced force that would be useful.
Magnets are not a source of energy.