This guy is the poster child of Robert Park's book Voodoo Science. I recommend reading it for the full story. Basically all Newman's done is make a high voltage (about 2000 D-cell batteries connected in series), low current motor that really isn't all that efficient. He's been trying to market it for years. Of course one should have doubts about the motor's efficacy given that, as Park points out, Newman's house is still connected to the local power lines.

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"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind." - William Thompson, 1st Baron Lord Kelvin

"If it was so, it might be, and if it were so, it would be, but as it isn't, it ain't. That's logic!" - Tweedledee

This isn't right. This isn't even wrong. - Wolfgang Pauli