No
Yes
Very soon
In due course of time
According to the laws of thermodynamics, it is impossible to design a machine that can work indefinitely without any energy input. The concept of a machine that can operate forever without energy expenditure is often referred to as a perpetual motion machine. However, the second law of thermodynamics states that energy cannot be created or destroyed, only converted from one form to another, and that there will always be some energy lost as heat due to friction and other inefficiencies. Therefore, it is not possible to build a machine that can work forever without any energy input.
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