Dave (imported) wrote: Wed Dec 11, 2013 7:27 am A portable aluminum foil cap?

I thought they sold that stuff in rolls?

I have seen aluminium and copper foil in rolls, with adhesive backing , though not cheap.

I can't wait until they make this technology work with E-Stim electrodes. Hook up my favorite 'trodes to my favorite body bits and crank it up. Look Ma, no wires!

Wireless charging IMHO could mean only yhat there is no conductive contact. It would help avoid all the known problems of bad contact at high currents and exposed electrodes with high voltages. Less fires and electrocutions.

Sidestory:

If you know what is yagi antenna, (yagi-uda antenna array) you could see them on the rooftops pointing toward TV masts. Then in 1926 there were two Japanese scientists Shintaro Uda and Hidetsugu Yagi who experimented with the same idea, to transfer power without wires to extensive distances. At the end everything reasonable failed, but as a sideproduct of their invention - radio frequency directed emitter and receiver antenna, later known as yagi found extensive use in radio receiving.

What is funny is that most Japanese were unaware of their own invention. Ironically Japanese intelligence found out about yagi antennas during WWII capturing notes of british radar technichian.

Hidetsugu Yagi: http://en.wikipedia.org/wiki/Hidetsugu_Yagi