Source is simple electrical power - in the initial experiment, the superconductor was fed a current of 10^4 amps using a high voltage generator. The apparatus then focuses a beam which appears to counteract gravity for any object in its path. A number of different types of target object were used, and it was found that the effect was independent of mass or composition; electromagnetic shielding also failed to counteract the effect, indirectly supporting the idea that this was a genuine anti-gravity phenomenon. No one else (allegedly) has been able to replicate this experiment, so there is a question mark over its validity. Boeing, again allegedly, because I've heard so many different reports/claims about this, are interested, it would now seem, from the point of view of using this device as a gun to knock satellites out of orbit.
In order to be used to significantly reduce fuel costs, the device would have to be developed appreciably beyond it's 2% performance rating at present! It was noted that the anti-gravitational effect seemed to be proportional to the magnetic field, so perhaps some enhancement of this element would produce a stronger effect. Anyway, I'll be watching this one with some interest!
