BBC earlier reported, according to the researchers, that the wireless battery charging concepts exploit century-old physics (invented by Nikola Tesla) and "could work over distances of many meters".
BBC: How Wireless Power Could Work
1) Power from
mains to antenna, which is made of copper
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
