Originally Posted by High Plains Drifter

*sigh*

"What we have developed is a way to construct magnetic fields so that when you travel round the magnetic fields, starting and stopping at the same position, you have gained energy," McCarthy said.

Oh you don't say? And where exactly are you getting the energy to "travel round the magnetic fields"? Sounds a lot like moving a wire loop through a magnetic field to generate an electric current. Maybe you've heard of it - its called a generator and its been around for 180 years.