On:

Could there be such a thing as a perpetual motion machine? Most scientists would say no, but there IS one that is over 300 years old, resting in a museum in Romania. If researchers could figure out how it works, it could pave the way to the creation of car batteries that never run out.

This battery, built by Vasile Karpen, has been operating without stop since 1950. When Karpen built it, he claimed it would last forever. He patented the design in 1922. On the Helium website, Terrence Aym quotes museum director Nicolae Diaconescu as saying, "I admit it’s also hard for me to advance the idea of an overunity generator without sounding ridiculous, even if the object exists."
read more