Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!deimos.cis.ksu.edu!rutgers!rochester!pt.cs.cmu.edu!andrew.cmu.edu!rg20+ From: rg20+@andrew.cmu.edu (Rick Francis Golembiewski) Newsgroups: sci.electronics Subject: Re: wireless electricity Message-ID: Date: 26 Apr 89 15:17:18 GMT Organization: Class of '92, Carnegie Mellon, Pittsburgh, PA Lines: 18 Yes, you could broad cast energy in a similar mannor to radio waves (remember that radio waves are a form of energy too, so it already being done in a sense), HOWEVER you are NOT going to see power lines disappear, this is because it is increadibly inefficient because the power would be transmitted in a sphereical wave (assuming that you wanted to transmit power to everyone), you run into a distance dependance, ie the farther you are from the transmitting source the weaker the power transmitted it. (I believe the amplitude is dependant on 1/r^2, however I'm not certain). In any case, ever wondered why you have to have to amplify a radio signal when the radio stations use far far far more power then you ever would need to run your radio? It's because by the time the signal gets to you, there isn't all that much power left. In any case electrical lines are lots more efficient, since you only send power where it needs to go, and of course the electric company can meter it too :-)... // Rick Golembiewski rg20+@andrew.cmu.edu \\ \\ #include stddisclaimer.h // \\ "I never respected a man who could spell" // \\ -M. Twain //