Echos of Tesla, or new source of HF QRM?
US researchers have successfully tested an experimental system to deliver power to devices without the need for wires.
The setup, reported in the journal Science, made a 60W light bulb glow from a distance of 2m (7ft).
The system exploits "resonance", a phenomenon that causes an object to vibrate when energy of a certain frequency is applied.
In the experiment both coils were made to resonate at 10Mhz, allowing them to couple and for "tails" of energy to flow between them.
Using low frequency electromagnetic waves, which are about 30m (100ft) long, also has a safety advantage according to Professor Pendry.
http://news.bbc.co.uk/1/hi/technology/6725955.stm