Is Perpetual motion possible?

Answer 1

According to the 2nd law of thermodynamics, no.

However, you could think of the whole universe as one machine in perpetual motion, in which case I'm not sure whether it is really perpetual or not.

Answer 2

Perpetual motion refers to a condition in which an object moves forever without being driven by an external source of energy. The term is commonly used to refer to machines which display this phenomenon. In the macroscopic world, perpetual motion is not possible.

Perpetual motion machines (the Latin term perpetuum mobile is not uncommon) are a class of hypothetical machines which would produce useful energy in a way which would violate the established laws of physics. No genuine perpetual motion machine currently exists, and according to certain fundamental laws in physics they cannot exist. Specifically, perpetual motion machines would violate either the first or second laws of thermodynamics. Perpetual motion machines are divided into two subcategories defined by which law of thermodynamics would have to be broken in order for the device to be a true perpetual motion machine.

Answer 3

It is happenning inside tehatom.the electron is moving around the proton perpetually unhindered and unintrrupted and uniform speed . So it is possile in vacuum if there is no friction of rsisnce and no intervention of other forces . The aoms are peaent in this atmosphericconditon and the vauum insdie teh atom is wel l protected en in this atmosphere and even in teh depth of the ocean wher the pressure is enormous , . because no otehr atom can get into t espace of any atom to alter the
vacuum or creat any friction to hinder teh speed of ther elecron.

the perpetual motionis already happening in the solar system and in teh gallaxies also as the planets and all galactic matter is revolving round the sun or some such similar mass perpetually unhindered by any other force . so perpetual motion is possible if a body is isopushed or force into or set into motion and left unhindered by any other force . In fact that is the order of nature .That is any body in motion can ciontinue to be in motion for ever unless and untill it is interfeered with .

Answer 4

Hi Srivathsan,

"What does the phrase “perpetual motion” actually mean (denotation, not emotionally distorted connotation)?. It simply means “continuous motion”. Well, that is just Newton's first law; a body placed in motion remains in continuous (perpetual) motion until interacted upon by an external force to change it (Newton's second law). So to question “perpetual motion” itself, is to question Newton's first law. The last I knew, Newton's laws were still doing fine in the region to which they apply.

In short, the literal meaning of “perpetual motion” for a great many decades has been deliberately twisted into a non sequitur to imply that it literally means “continuous production of energy or work from nothing, i.e., without any energy input at all.” So this foolishness and violation of logic has been used to twist Newton's first law, with the claim that it is a statement of continuous production of energy or work from nothing. It is no such thing. Any moving object, once placed in motion in an inertial frame, continues indefinitely. And whatever kinetic energy it has to the lab observer, remains continuously. Simply kick a can out of the shuttle in deep space, and that proves it rather conclusively."

Quoted from Tom Bearden's site: http://www.cheniere.org/correspondence/022503.htm (view this page to read complete explanation)

Note that Tom is one of the few people who claim to have developed a perpetual motion device - The Motionless Electromagnetic Generator (MEG)

Answer 5

Yes theoretically it is possible, however it could produce no useful work as this would require the trasnsfer of energy. Most people will be quoting the second law of thermodynamics. Newtons first law will suffice "A body at rest will tend to remain at rest until acted upon by an outside force" Motion is relative, So any body that is not acted upon by an ouside force is an example of perpetual motion!

Answer 6

Damn, thought I'd be the only one to answer yes in the case of the universe... although our understanding of it is still limited. One theory says that the universe will continue to expand indefinitely and ultimately cool down. Another theory says that it will contract after the expansion stage, perhaps to a singularity again, and then expand again like a rubber band. So.... for the most part, no, perpetual motion is not possible due to the law of thermodynamics but on the scale of the universe... not sure.

Answer 7

The only way perpetual motion can be stopped is at 0 degrees (kelvin) .From another point of view Voyager one is in perpetual motion as long as nothing stands in its way

Answer 8

Perpetually Not Possible.

Answer 9

Yes. There are several reasons I think so, with the best reason being because soemone said it wasn't. I think everything is at least theoritically possible. theory become real all too often to not have a chance to suceed.
When I was a kid I borrowed a motor bike which had it's power for the light and the engine supplied by a generator mounted on the rear tire. you only had to sit on it and push off with your feet to jump start the bike. The battery was only used much like a relay. BUt had chargeable battery been used you would have perpetual motion for as long as the battery, tires,and generator lasted. perpetual motion of this would have been produced by the endless supply of pavement available.
An old man near me once invented a valve (air valve) I wasn't there but was told by people who were not liars that with this valved attached to a tractor tire he could bust the tire by blowing into it himself. With engineering design this application could have an endless supply of energy set in motion by the wind blowing outside an airplane, car, boat, or from the steam of the radirator of you car cycled though the devise. Sadly to say he showed one day with a check for 5 grand (his valve sold to an oil company) he was so proud of, and with in a week he and was gone as well as his devise, Goverments, and Oil companies don't play around with people or inventions like that.
Soem cars now will have part of their electricity (or all ) derived from pluging it into a home 110 volt outlet using less current than a tv.. Yet you can buy a devise which connects to your car and gives you 110 volts for use in remote places such as farms, ranches, construction work. A drill, saw, lights ect works right off the the devise (which works off the battery) which could be designed to charge same battery. You always hear the line or poems of the ocean with it's perpetual motion(waves, wind, and tides ect.) and this is true. It is perpetually in motion and all attempts to optonize on it's perpetual motions are stonewalled by goverments, business, and researchers who are guilded by personal gains with alleigence to self and to the above.
It's the same old story of finding cures for an illness. Researchers are forced out of the curing end of the research and into the treatment end of research. Drug companies and Medical groups seek constance treatment(sales) rather than cure. So far this is the problem with perpetual motion research.

Answer 10

Perpetual motion is possible with supply of external energy. All vibrations are in that category. However if no external is input then it can not be sustained