Perpetual motion—it's fun to say that. For some people, perpetual motion machines hold the secret to everlasting free energy that will save the world. To them, it's a machine that is just beyond our ...

Inventors have long tried to cheat the laws of physics. From quirky toys to impossible contraptions, these are the strangest ...

At the turn of the 20th century, the quest for a perpetual motion machine took hold of public imagination. A number of Hoosiers were among those captivated by the idea of creating a perpetual motion ...