"Eternal" engine does not stop 60 years

This "perpetual motion machine" was designed by Romanian scientist Nicolae Vasilesko-Karp (Nicolae Vasilescu-Karpen). According to some experts, the battery had to stop decades ago, but measuring the voltage carried by journalists, shows a value of 1 volt - exactly the same as in 1950. It is an energy source called "battery Karp" (Karpen's Pile), running without interruption since 1950, and it's 60 years!    The prototype consists of two primary elements that drive the engine with the key that at half engine speed circuit closes and then opens it. During the movement of the engine is carefully selected so that it is enough to galvanic cell can be fully recharged, in this changing its polarity.