We're surrounded by electromagnetic fields almost everywhere these days. Just because they're almost imperceptible doesn't mean they can't be used as a source of energy though. A digital media student at the University of the Arts in Bremen, Germany, Dennis Siegel successfully created a prototype of a battery rechargeable device which utilizes electromagnetic waves.
It may sound a little sketchy, but it's an idea that many researchers, including a team at Georgia Tech, have been exploring for years. According to Siegel, using the harvester involves simply holding it up to anything with an electromagnetic field – a cell phone, a coffee maker, a commuter train, etc. Once it enters a strong enough field, a red LED will light up to indicate it is charging. It also has a magnet on the back to leave it attached near an EMF source and can charge from the combined fields of living things, like when a person pets a dog. Seigel designed two different versions of the harvester: one for frequencies below 100Hz (like those found in electricity mains) and one for frequencies above 100Hz (like those found in Bluetooth, WLAN, and radio broadcasts).
As quoted from Gizmag, a small box that allegedly could charges an AA battery using just the electromagnetic fields given off by the power lines, vehicles and electronic gadgets. The device is equipped also with a magnet on the back so that when we find the source of such electromagnetic waves in the microwave then we can stick it at the microwave.
The main issue with this form of energy collection is the amount of power it generates tends to be incredibly small, which might explain why it takes a full day for the Electromagnetic Harvester to charge a single AA battery. However, the possibility in the future Electromagnetic Harvester technology can be used to recharge batteries which have a much larger capacity. Should we wait for the further development of this very promising technology. *** [EKA | FROM VARIOUS SOURCES | GIZMAG | DENNIS SIEGEL | RIF | PIKIRAN RAKYAT 01082013]
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| Dennis Siegel's Electromagnetic Harvester. (Picture from: http://dennissiegel.de/electromagnetic-harvester/) |
As quoted from Gizmag, a small box that allegedly could charges an AA battery using just the electromagnetic fields given off by the power lines, vehicles and electronic gadgets. The device is equipped also with a magnet on the back so that when we find the source of such electromagnetic waves in the microwave then we can stick it at the microwave.
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