1) Power from mains to antenna, which is made of copperMore details at BBC News.
2) Antenna resonates at a frequency of 6.4Mhz, emitting electromagnetic waves
3) 'Tails' of energy from antenna 'tunnel' up to 5m (16.4ft)
4) Electricity picked up by laptop's antenna, which must also be resonating at 6.4Mhz. Energy used to re-charge device
5) Energy not transferred to laptop re-absorbed by source antenna. People/other objects not affected as not resonating at 6.4Mhz
Scientists working on wireless power
Posted on Thursday, Nov 16 2006 @ 10:51 CET by Thomas De Maesschalck
Scientists are developing a way to transfer power wirelessly. This could be useful for consumer electronics like MP3 players or laptops. Here's a basic explanation of how it works: