Wireless Electricity? Hell Ya!
2008 March 22
TVDenimChap sent me an awesome article talking about the prospects of wireless electricity. Imagine that, no more need for power surges or cables. The electricity comes wireless to your gadget and that is it. Here is a brief demonstration of how it works below:
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
Read more about this fantastic find at this link below.
If you’d like to see another embodiment of wireless power, take a look at ecoupled.com. They’re delivering power from milliwatts to kilowatts using inductive coupling, with no noise, high efficiency and a built in intelligence that allows the power source and devices to communicate to determine power needs and battery life.