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Wednesday, February 13, 2013

Harvest free electricity from thin air

German student creates electromagnetic harvester that gathers free electricity from thin air

A German student has built an electromagnetic harvester that recharges an AA battery by soaking up ambient, environmental radiation. These harvesters can gather free electricity from just about anything, including overhead power lines, coffee machines, refrigerators, or even the emissions from your WiFi router or smartphone.

This might sound a bit like hocus-pocus pseudoscience, but the underlying science is actually surprisingly sound. We are, after all, just talking about wireless power transfer — just like the smartphones that are starting to ship with wireless charging tech, and the accompanying charging pads.


Dennis Siegel, of the University of Arts Bremen, does away with the charging pad, but the underlying tech is fundamentally the same. We don’t have the exact details — either because he doesn’t know (he may have worked with an electrical engineer), or because he wants to patent the idea first — but his basic description of “coils and high frequency diodes” tallies with how wireless power transfer works. In essence, every electrical device gives off electromagnetic radiation — and if that radiation passes across a coil of wire, an electrical current is produced. Siegel says he has produced two versions of the harvester: One for very low frequencies, such as the 50/60Hz signals from mains power — and another for megahertz (radio, GSM) and gigahertz (Bluetooth/WiFi) radiation.

http://www.extremetech.com/extreme/148247-german-student-creates-electromagnetic-harvester-that-gathers-free-electricity-from-thin-air

5 comments:

Anonymous said...

It's a shame, because Nikola Tesla invented this (and may other inventions) a long time ago.

Greedy corporations and their owners Rothschild/Rockefella/JP Morgan stole this technology and have kept it for themselves ever since.

What we pay for electricity is not just about the money. It's the power and control these elite scum, and their companies/corporations they own, have over us.

I hope this German student gets this technology onto the market and bankrupts the greedy power/gas companies (I wish).

Woodsy42 said...

There is nothing exceptional about the theory - your humble TV aerial picks up elecromagmetic waves and sends them down the wire as electrical signals.
The problem is surely getting enough power in useful quantities to make it worthwhile?
Plus the fact that if you absorb them in your device in efficient quantity your wifi, radio etc will lose signal.

Anonymous said...

This is not free electicity its just mutual induction.

Anonymous said...



You can use a tank cct to tune to a specific frequency to tune into a suitable frequency you wish to rob.

A while back a guy who lived under the National Grid lines put a coil in his roof (loft) to tap off the mains 100kv but got dobbed in by a mate? got done also.

(Bit like the MP partner fallout over speeding points currently)

Pretty cool though.

HETT

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