I tend to go on the rather simple principle of TANSTAAFL, as manifest in the Laws of Thermodynamics. Wherever the energy comes from and however it's applied, it's all got to add up the same way in the end. If you've got a device that appears to allow you to sidestep some part of physics, you've still got to pay the energy cost somewhere/somehow. (Otherwise, congratulations, you have perpetual motion and/or energy ex nihilo.) -- --------------- Kelly St. Clair xxxxxx@efn.org