What Is a Perpetual Machine? | Thermodynamics Explained

• Krishna0703
In summary, a perpetual machine is a hypothetical device that can continuously produce work without any external energy input, violating the laws of thermodynamics. These laws state that energy cannot be created or destroyed and that the entropy of a closed system always increases. Therefore, a perpetual machine is considered impossible to create. No such machine has ever been successfully created and there are no known practical applications for it. However, the concept of perpetual motion has inspired the development of more efficient and sustainable energy sources.
Krishna0703
hi everybody, i have a question to which am unable to find the answer.
what is a perpetual machine?
this is related to thermodynamics and also what i understood there is a first kind and a second kind also...any detailed info from anyone please..
thanks

See: http://en.wikipedia.org/wiki/Perpetual_motion"

Last edited by a moderator:
Perpetual machine is the one which can produce useful work indefinitely. They can do more work (produce more energy) than they actually consume. They are of course hypothetical though as they violate the principles of thermodynamics.

thanks ...

A perpetual machine, also known as a perpetual motion machine, is a hypothetical machine that can operate indefinitely without any external energy input. In other words, it is a machine that can continue to move or function without ever stopping or needing to be powered by an outside source. This concept goes against the laws of thermodynamics, which state that energy cannot be created or destroyed, only transferred or converted from one form to another.

The first and second kinds of perpetual motion machines refer to the two main types of violations of the laws of thermodynamics. The first kind of machine is one that produces more energy than it consumes, essentially creating energy out of nothing. This goes against the law of conservation of energy and is not possible.

The second kind of perpetual motion machine is one that can continuously convert energy from one form to another without any loss. This goes against the second law of thermodynamics, which states that in any energy conversion, some energy will be lost to heat. Therefore, a machine that can convert energy without any loss is also not possible.

In summary, perpetual motion machines are not possible according to the laws of thermodynamics. While there have been many attempts to create such machines, they have all failed. This is because the laws of thermodynamics are fundamental principles of physics and cannot be violated. I hope this helps to answer your question.

What is a perpetual machine?

A perpetual machine, also known as a perpetual motion machine, is a hypothetical device that can continuously produce work without any external energy input. It violates the laws of thermodynamics and is considered impossible to create.

What are the laws of thermodynamics?

The laws of thermodynamics are fundamental principles that govern the behavior of energy and its relationship with matter. The first law states that energy cannot be created or destroyed, only transferred or converted. The second law states that the entropy (disorder) of a closed system always increases over time. The third law states that the entropy of a perfect crystal at absolute zero temperature is zero.

Why is a perpetual machine impossible?

A perpetual machine is impossible because it violates the first and second laws of thermodynamics. The first law states that energy cannot be created or destroyed, so a machine cannot produce work indefinitely without an external energy source. The second law states that the entropy of a closed system always increases, meaning that energy will eventually be lost as heat and the machine will stop functioning.

Have any perpetual machines been successfully created?

No, no perpetual machine has ever been successfully created. Many attempts have been made throughout history, but they have all failed to produce work indefinitely without an external energy source. Any machine claiming to be a perpetual machine is either a hoax or has not been properly tested and evaluated.

Are there any practical applications for perpetual machines?

No, there are no practical applications for perpetual machines as they are considered impossible to create. However, the concept of perpetual motion has inspired scientists and engineers to develop more efficient and sustainable energy sources, such as solar and wind power, that can produce energy for longer periods of time.

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