Let's design a fake Perpetual Motion machine
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From: Bill Beaty on 11 Mar 2010 16:09 I was thinking about all the fringe-science "Magnet Motors" and found myself reasoning thus: suppose there's a way to power a flywheel by slowly demagnetizing some permanent magnets. Wipe out the magnets' stored energy, and inject it as KE into the flywheel. If possible, this would explain a large number of bizarre PM claims, since every so often a basement inventor would stumble across the phenomenon. But as far as I know, nobody has tried to do this intentionally. OK, what if? First of all, a pair of repelling magnets placed upon a rotor/stator, if gradually increasing in magnetization, will experience net acceleration, and will only stop when the magnets get fully saturated. During each approach, they decelerate a bit less than they accelerate during retreat, so the flywheel receives a small kick. But obviously the magnetization requires an external power supply. But the other way is interesting: *attracting* magnet-pairs, if slowly DE-magnetized, will be similarly accelerated. They accelerate while approaching each other, then decelerate less when retreating, for a net kick of KE. The net mechanical gain could possibly compensate the thermal losses of a simple demagnetizer section. I'll assume there's a few microwatts left over to keep a flywheel slowly turning against air friction. Very cool if true!!! It's not hard to demagnetize a small patch on the surface of ceramic magnet by using a tiny supermagnet. Or, slightly demagnetize an entire magnet by using a coil to apply a brief pulse. Two supermagnets, if forced together with alike-poles repelling, will demagnetize each other. A simple flywheel couldn't do this, since attracting magnets tend to magnetize each other via "keeper" effect, which would lead to net braking. The mechanism needs more complexity. So perhaps combine a flywheel with a pendulum, or a flywheel with small parts rotating independently. Or perhaps just place a very tiny supermagnet at the right spot between ceramic magnets on the rotor & stator? Better yet, let one of the ceramic magnets spin, that way it will present a random spot of fresh ceramic for demagnetization. I think it should be trivial to accomplish this for a few cycles (a couple seconds acceleration before the effect poops out, like unwinding a spring.) The real trick would be to juggle things so the demagnetization is repetitive but very very small, enough where it could keep a flywheel spinning anomalously for long minutes before the magnets weakened too much. If these are feasible, I would suspect that similar fake PM machines already exist and would have been central to known PM scams. (The "Searl Device" suspiciously resembles one possible setup, where the patterns on the large central magnet would be slowly wiped out by the orbiting ones.) Such an effect could have been repeatedly accidentally discovered. Imagine owning a spring-powered wheel, but one where the spring is invisible and takes hours/days to unwind. Pranking possibilities! Perhaps even risk assassination by oil companies and the Illuminati! :) In any case, one could go online and start soaking investors immediately.
From: amdx on 11 Mar 2010 19:53 "Bill Beaty" <billb(a)eskimo.com> wrote in message news:13a12f95-f4d4-4b2c-ac60-98b72f553a8e(a)b36g2000pri.googlegroups.com... >I was thinking about all the fringe-science "Magnet Motors" and >found > myself reasoning thus: suppose there's a way to power a flywheel > by > slowly demagnetizing some permanent magnets. Wipe out the > magnets' > stored energy, and inject it as KE into the flywheel. If > possible, > this would explain a large number of bizarre PM claims, since > every so > often a basement inventor would stumble across the phenomenon. > But > as far as I know, nobody has tried to do this intentionally. I've wanted to build a Dulac pile. They have been used for PM devices. http://www.eskimo.com/~billb/emotor/duluc.html
From: a7yvm109gf5d1 on 11 Mar 2010 20:52 Perpetual motion is built into the universe, it's a fundamental property of it. Of course, limited by its life span. See: Newton's first. "Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. " Things move forever as long as they're not disturbed. I guess that means perpetual motion is quite boring.
From: Bill Beaty on 12 Mar 2010 13:07 On Mar 11, 4:53 pm, "amdx" <a...(a)knology.net> wrote: > I've wanted to build a Dulac pile. They have been used for PM > devices.http://www.eskimo.com/~billb/emotor/duluc.html Those give out nanowatts for centuries, enough for a Franklin Bell. Perhaps a "Duluc Damp-Pile" would produce the milliwatts needed to keep an electrostatic motor slowly turning for a few months. For the metal foil, I notice that Al plus Cu electrochem series gives 2.0V output. But I don't know if the Al oxide layer would be too much of a problem. If you had a hand-crank embossing roller device, you could make your own zinc or magnesium foil. Then use silver-leaf from an art supplier. (((((((((((((((((( ( ( ( ( (O) ) ) ) ) ))))))))))))))))))) William J. Beaty SCIENCE HOBBYIST website billb a eskimocom http://amasci.com EE/programmer/sci-exhibits amateur science, hobby projects, sci fair Seattle, WA 206-762-3818 unusual phenomena, tesla coils, weird sci
From: Tim Williams on 12 Mar 2010 13:53
"Bill Beaty" <billb(a)eskimo.com> wrote in message news:40d5706f-ce2d-4248-9020-c1e5d7391b63(a)n7g2000prc.googlegroups.com... > For the metal foil, I notice that Al plus Cu electrochem series gives > 2.0V output. But I don't know if the Al oxide layer would be too > much of a problem. If you had a hand-crank embossing roller device, > you could make your own zinc or magnesium foil. Then use silver-leaf > from an art supplier. Ah, but that's only if you use Cu(2+) electrolyte, otherwise there's no copper to reduce and it's an inert electrode. Aluminum in NaOH makes about 0.8V against hydrogen. If you burn the H2 (maybe with MnO2 as in a dry cell, or with O2 in a fuel cell, making this an aluminum-air cell) you should get closer to 2V. Interesting trivia: aluminum is not corroded by copper sulfate. But, add a grain of NaCl and watch out! Chloride catalyzes the displacement reaction. Tim -- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms |