I’m too lazy to click on that link but, I think that pad you can use to charge your phone and anything else is pretty neat.
But I think electricity needs a to run through a circut to make the energy. I don’t think it can actually run through a signal.
Possible, but at present not very practical. Due to the inverse square law, available power at the receiver drops off exponentially the farther away it is from the transmitter. I see it being a convenient way to keep cell phones and such charged simply by setting the phone on the same tabletop as the charger, but highly impractical to have a wireless power transmitter in your home to deliver power to all your electrical devices.
@mammal With all of the cell phones, ipods, blackberry and other communication devices out there today (many of which have internet access) I suspect we live in an ocean of electromagnetic radiation anyway. Different type of ‘radiation’ however.