Perpetual motion Definition and 111 Threads

suppose we do not excite it or depress it, will it perform spin forever?

Hey, Is the only reason for a perpetual motion machine being impossible, both in theory and in practice, simply due to friction? Because there are substances, such as superfluids, and potentially other forms of matter that could be discovered in the future where there is zero friction, so would...

I'm probably going to make a fool of myself for asking this, but that's what the anonymity of the internet is for right? (That and other things that you probably won't find at a physics forum) If I understand correctly, and I may well not, the reason you cannot build a device that will...

Say you had a spring with a magnet on top(stuck to the spring). And when the spring is pushed down, in which it will go back up, it will go near another magnet, pushing it down. Pushing it down makes it go back up. Would this work?

Could somebody please explain this excerpt to me from Feynman's Lectures on Physics on perpetual motion? I don't completely understand his definition of perpetual motion. Thanks! "We must be careful to define perpetual motion...If, when we have lifted and lowered a lot of weights and restored...

Alright, I've been into the argument of perpetual mation. I've seen the debate for each side and I wanted to see you guys thought. There is one theory that seems to prove it. If prepetual motion isn't real then why do electrons around an atom never stop?

Would a buoyant object be able to achieve perpetual motion or even past perpetual motion if it were in a machine as portrayed below?https://mail.google.com/mail/?ui=2&ik=93e42fc0d8&view=att&th=12ca0732e35fe2f9&attid=0.1&disp=inline&realattid=f_gh5sgy4n0&zw

So a friend of mine posted this picture on my facebook wall. I assume there is some kind of inside joke involved that I'm not on the inside of. Anyways, I can't see any reason why this setup is impossible.

I found textbooks on physics (long time ago, when I was a student) where the authors said (paraphrase): "We do not assert that perpetual motion is impossible. It just hasn't been seen so far." What do the mentors and contributors say about that statement? (berkeman?)

I am here today to propose a "perpetual" device. it doesn't make energy, its perpetual in the sense that more energy (specificly electricity) is received that the amount used. Have your heard of the Dyson bladeless fan? well ill post a link for you to read, but ill put all the basic information...

What do you call and where can i buy the set of balls (maybe 4 or 5) suspended in strings and when the outermost ball hits the the next one and bounces off the last one on the other end and sets off perpetual motion? I surely appreciate any ones response. Thank you. Josh

How come we say perpetual motion is not possible according to the laws of thermodynamics. Yet our universe is expanding faster and faster. How can we say nothing is faster than the speed on light but the universe expanding is? Keep it simple please.

Ok, I'm almost certainly incorrect but I want to see where I'm going wrong. Let's say the Earth had only ocean, and a little jut of land somewhere amongst this ocean that had a turbine that collected energy as water ran through it. Now consider the moon orbiting the earth, pulling the...

Does anyone have explanation for these videos? << video links removed by berkeman >>

Hi, people! I've recently found this site on the web: [link deleted by Ivan] It is a site thet sells plans for various so called "fuelless motor" devices. Take a look, and you'll see that it is basically selling plans of perpetual motion machines (and they aren't even original! The diagram...

This example is highlighted in the Wikipedia definition of perpetual motion. Machines which are claimed not to violate either of the two laws of thermodynamics but rather to generate energy from unconventional sources are sometimes referred to as perpetual motion machines, although they are...

Hi All, Thermodynamics forbids perpetual motion based in its second law, but how should one deal with an isolated H atom, seen here as a machine? Is there a concrete perspective of its stopping? In its stationary and fundamental state may one observe dissipation? Thank you DaTario

Hi all Ill start with saying I am very new to all this. I am a very geometric oriented person and I view things as images and not equations. So most times I can figure out and know how things work but I just can't explain how they work in terms or equations. I have just started studying quantum...

The original problem was as follows: Closed-loop system, with complete isolation. Salt water is green, fresh water blue, porous plug (AB) is red. Fresh water spills into the salt water column at C if the fresh water is lifted higher than the salt water, maintaining continuous flow...

I have tried to find out how gravitational radiation can be suppressed or decay, there may be some thing in the literature but i can not find it, also is it possible for gravity waves from different distances and times to merge?

perhaps you can help me. on http://www.lhup.edu/~dsimanek/museum/themes/buoyant.htm fundamentally, what is the reason that the picture under the words "buoyant wheels and belts" doesn't work? (Except remove the movement of water between two buckets. replace that with compressing and...

Hello. I've come up with an idea that I need to check: There is a wheel, filled up with air, inmersed on a tank of water. Attached to that wheel there is a number of boxes, that has two windows on opposite sides that can communicate with the water on the tank, or with the air inside the...

I just read about a new perpetual motion machine and it looks like it will work. You take a cat and tie a piece of toast on to its back. then you butter the toast and toss the cat into the air. Since the toast has to land butter side down and the cat always lands on its feet it spins forever.

A heat engine is combined with a heat pump so that the entire system is an isolated system. In the heat engine, energy shifts from the hot reservoir so that some of it is used for work and the rest is sent to the cold reservoir. The work, however, is used entirely for the heat pump, in which...

Seems like an odd question - but if your an astraunaut in Earth orbit and travel with it around the sun - your going different speeds around the sun but always traveling the same distance away from any two points on the sun every second (keplers #2) the how = closer you are to sun, the faster...

a perpetual motion machine that will work... A magazine held a competition, inviting its readers to submit new scientific theories on ANY subject. Below is the winner: Subject: Perpetual Motion When a cat is dropped, it always lands on its feet, and when toast is dropped, it always...

I've heard a perpetual motion machine would be impossible, but then that some people out there believe it is. I was wondering if anyone out there has any thoughts on it..

Hi. In class we are currently studying electromagnetism. The unit we are currently doing is on generators and motors using faradays law of induced emf. While reading, i had a random thought: If a generator is set up, such that its output current is directed to a motor, which creates...

There is a U-tube which contains pure water of about half of its volume. And let's put a capacitor around one surface of the water in the tube. If we apply a high dc voltage to the capacitor, the surface of the water in one side of the tube rises slightly because the permittivity of water is...

I found how to make a perpetual motion machine! (just joking, keep reading! :-p) We just saw what they are in my thermodynamics class, and if I understood correctly, it represents the only heat-to-work conversion machine not (theoretically) in violation of the second law. And this solution is...

What is perpetual motion? Will it work in space?

Is a helium atom (or any atom with a full valence shell) a perpetual motion device?

well, here's the thing, i have an idea and would love to share with everyone, but until i physically test it I am not going to, but if anyone has any input on the subject i would love to hear it

Hello, Just like in the topic, what causes electrons to move around the nucleus in perpetual motion (they never stop). For now, it's the only question. I'll have some more when I get the answer. p.s Actually, let me ask another one. A little bit unrelated. What causes electrons to move in a...

This is a Edit ... What Tests and Guidelines would a perpetual motion machine have to pass to be considered legit? thanks everyone matt

I just noticed as I was writing my research paper on perpetual motion, as I was going over the laws of thermodynamics, I realized that it is like the plot of I Robot. In I robot, the 3 Laws the robots must follow is like the laws of thermodynamics. The robot/computer program security system...

This makes for an interesting mind experiment: http://www.geocities.com/osiris_dionysus1618/ppmmach2.GIF Ultimately the energy comes from the magnetic fields that deminish.

second type perpetual motion machine is existent . miaobo Let us assume that a system make a circulate of thermodynamics ,if we can approve that entropy will not equal to 0 , so the second law of thermodynamics is wrong ,and the second type perpetual motion machine is existent . The...

Perhaps motion is not what is happening in the electron clouds, at least not the motion we sense from the coordinates at which we observe the universe. Remember that you and I are particulate beings, made of what we observe to be atoms and particles...as you say? Also remember that each...

[SOLVED] Perpetual Motion within an atom? I have something to add to this. Since I don't quite understand what the guy above said I'm sorry if I repeat a question of his. If electrons are goin' around an atom with a balance of kinetic and Potential energy, and they've been spinning since the...

I read about the Casimir effect right away, and the first thing that came to me was a question. If quantum fluctuations can in empty space can move two completely uncharged metal plates at small distances, then wouldn't that give the potential for a perpetual motion machine? I realize...

Hypothetically speaking of course- For a machine to be perpetual; Does it have to start its movement off its own energy / work from its own system? Or does it simply have to sustain momentum-movement once its motion has started? Ie) If I use an electric current which is employed from...

Perpetual motion has been deemed "impossible", at least in the world we live in. Why aren't the perfectly elastic collisions between gas particles considered perpetual motion?

So according to my common sense and logic and some disscussions I had with other people on IRC, theoretically in space if you had a exactly/perfectly spherical planet with a cylinderical hole through it, and you dropped something -a huge permanent magnet to be specific- through that hole, the...

I'm just curious, why is it that anye perpetual motion machine that is thought up is discarded immedietly. I know that energy can't be created nor can be destroyed but then again, a few centuries we were absolutely positively sure that the Earth was flat! I mean anything can be wrong, why...

I had an idea which i can't fully realize because i don't know the physics behind it. Here it is: imagine two particles, for example a and b. imagine also that a is attracted to b but b repels a. In this case, both atoms would essentially travel in a straight line forever assuming they repel and...

First off, I don’t have a phd, I am not a scientist (hehe well I am a comp programmer and i know some of them to claim to be scientist) My skills and basic understanding physics, classical and quantum are weak compared to the people that frequent this forum. I actually found this forum while I...

I make a perpetual motion device. It is a kind of overbalanced wheel. :wink: It is very simple mechanism. I am trying to make its prototype (or toy model). It is on paper now. :confused: I am trying this month only. After that I will cut my drawing in ten (10) parts.I ll release all drawings...

Question: A student once came up with an idea for a perpetual motion machine. His idea was as follows: Point an electric fan at a wind generator. Blow on the blades of the wind generator to activate it. As the generator produces electricity, it is used to ppower the electric gan which in turn...

perpetual motion and free energy possible? acording to many inventors, they have invented a perpetual motion machine, from a guy in Norway, USA, Canada, France. but according to todays laws in physics, perpetual motion is imposible, one guy said aliens from Kandlon, or something, visited him...