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 ...

Almost as soon as humans created machines, they attempted to make "perpetual motion machines" that work on their own and that work forever. However, the devices never have and likely never will ...

Since we found out about energy, right up until the point we found out it violated the laws of physics, people have dreamed of creating a perpetual motion machine. Perpetual motion machines are ...

Among impossible machines, perpetual motion is in a class of its own. The idea of creating unlimited energy has burned through humanity for centuries, that somehow a device could work forever ...