What makes a perpetual motion machine?
A perpetual motion machine is a hypothetical machine that can do work infinitely without an external energy source. Thus, machines that extract energy from finite sources will not operate indefinitely, because they are driven by the energy stored in the source, which will eventually be exhausted.
Can you build a perpetual motion machine?
To keep a machine moving, the energy applied should stay with the machine without any losses. Because of this fact alone, it is impossible to build perpetual motion machines. This friction will ultimately cause the machine to lose its energy to heat.
Under what conditions will a machine be classified as a perpetual motion machine?
Simply put, the First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another. A perpetual motion machine would have to produce work without energy input. The Second Law of Thermodynamics states that that an isolated system will move toward a state of disorder.
What is the law of perpetual motion?
perpetual motion, the action of a device that, once set in motion, would continue in motion forever, with no additional energy required to maintain it. Such devices are impossible on grounds stated by the first and second laws of thermodynamics.
What are the two types of perpetual motion machines?
There are two types of perpetual motion: perpetual motion of the first kind, and perpetual motion of the second kind. Perpetual motion of the first kind is defined as any type of motion that once activated, will keep running without any additional source of energy.
What are some examples of perpetual motion machines that people have reported to have built or tried to build?
The design of one machine was such that it supposedly kept spinning indefinitely due to an imbalance created by containers of mercury around its rim. Other examples of attempts at a perpetual motion machine include 16th Century windmills, 17th Century siphons, and some water wheel designs.