| Perpetual motion machine is a device or system that | | | | resistance occurring in any machines. |
| produces more or as much as energy absorbed for | | | | Since perpetual motion machines do not apply the |
| the process, that is theoretically it should work | | | | existing laws of nature, it is considered to be |
| indefinitely to give more energy than consumed. This | | | | unscientific, hence impossible. If we closely examine |
| contradicts the law of nature. Infact a perpetual | | | | certain devices which are said to be perpetual motion |
| motion machine is said to violate all the three laws of | | | | machines, we can notice that they indeed use up |
| thermodynamics. | | | | some energy resulting in its working. Here are a few |
| Create Free Electricity at Home with Magniwork | | | | examples of such devices. |
| Based on the violation of thermodynamics law, | | | | The drinking bird or the dippy bird toy uses the |
| perpetual motion has its own classifications. | | | | moisture in the environment for its working and by |
| The first law of thermodynamics states that energy | | | | temperature gradients. The difference in vapour |
| can neither be created nor destroyed, but | | | | pressure and temperature gradient gets the capillary |
| transferred from one body to another. A perpetual | | | | water based pump to work. A crookes radiometer |
| motion of first kind gives unlimited amount of energy | | | | consists of a partial vacuum glass container with a |
| from nothing, which is a clear cut contradiction to the | | | | small propeller worked by temperature gradients. |
| first law. | | | | Inorder to wind the spring of the atmos clock, it uses |
| The second law of thermodynamics says that there | | | | the changes in the vapor pressure of ethyl chloride |
| will always be some wastage of energy in the form | | | | with temperature. Any device that functions using |
| of heat, hence no machine can give 100% efficiency. | | | | energy in small quantity from electromagnetic |
| Perpetual motion of the second kind refers to a | | | | radiation is also said to be perpetual motion machines. |
| device that pulls out heat from a source and then | | | | Besides the physics based description, perpetual |
| exchanges this heat completely into other forms of | | | | motion machine has other denotations too. It can be |
| energy. | | | | literally used to describe machines or even people in |
| The third law of thermodynamics states that friction | | | | as moving perpetually or continuously without |
| exists, hence entropy increases. Perpetual motion of | | | | stopping. Also, any concept or equipment that |
| the third kind is a device that can function or keep | | | | violates physics is colloquially called a perpetual motion |
| moving forever, which is not plausible due to the | | | | machine. |