The bit I liked was:

<< The system exploits "resonance", a phenomenon that causes an 
object to vibrate when energy of a certain frequency is applied.
When two objects have the same resonance they exchange energy 
strongly without having an effect on other surrounding objects. >>

Now, I couldn't we use that effect in amateur radio somehow!

Mike, G3XDV
==========


On 8 Jun 2007 at 11:49, Andy Talbot wrote:

> *http://news.bbc.co.uk/1/hi/technology/6725955.stm*<http://news.bbc.co
> .uk/1/hi/technology/6725955.stm>
> 
> They clain to have acheived 40% efficiency - that doesn't seem very
> good.
> 
> Andy  G4JNT
>