Sony Prototype Sends Electricity Through the Air

itwbennett writes "Sony announced Friday that it has developed a prototype power system based on magnetic resonance that can send 'a conventional 100 volt electricity supply over a distance of 50 centimeters to power a 22-inch LCD television.' Unfortunately, Sony's prototype wasted 1/5 of the power fed into it and additional losses 'occurred in circuitry connected to the secondary coil so the original 80 watts of power was cut by roughly a quarter to 60 watts once it had made its way through the system.'"

Comments

Re:Wasted 1/5 of energy?

[nhytefall]

The wasted energy is most likely dissipated as high frequency RF energy. In most primary/secondary coil designs (for the less enlightened... think Tesla coil), the bulk (80-90%) of "lost" energy is dissipated as high frequency RF. The rest is dissipated as heat and light.

Re:It's a start

[Oronar]

Already sold as a product. http://www.thinkgeek.com/stuff/41/wec.shtml