Student Invents Device that Charges Batteries with Radio and WIFI Waves ... V

[Ponce]

Be sure to check out the video........even a lazy dog produces energy.
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German university student, Dennis Siegel, invented a device that captures electromagnetic fields like WIFI and radio waves and converts them to stored energy in batteries.

His electromagnetic harvester won second place at this year's Digitale Medien (Digital Media) technology competition at the University of the Arts Bremen, Hochschulpreis when he successfully demonstrated charging one AA battery over the span of a day.

Siegel explains the device on his blog:

The omnipresence of electromagnetic fields is implied just by simple current flow. We are surrounded by electromagnetic fields which we are producing for information transfer or as a byproduct. Many of those fields are very capacitive and can be harvested with coils and high frequency diodes. Accordingly, I built special harvesting devices that are able to tap into several electromagnetic fields to exploit them. The energy is stored in an usual battery. So you can for example gain redundant energy from the power supply of a coffee machine, a cell phone or an overhead wire by holding the harvester directly into the electromagnetic field whose strength is indicated by a LED on the top of the harvester.

Depending on the strength of the electromagnetic field it is possible to charge a small battery within one day. The system is meant to be an option for granting access to already existing but unheeded energy sources. By exploring these sources it can create a new awareness of the invisible electromagnetic spaces while giving them a spatial dimension.



There are two types of harvester for different electromagnetic fields: a smaller harvester that is suitable for lower frequencies below 100Hz which you can find in the general mains (50/60Hz, 16,7Hz) and a bigger one that is suitable for lower and higher frequencies like radio broadcast (~100MHz), GSM (900/1800MHz) up to Bluetooth and WLAN (2,4GHz).
Here's a short video of Siegel finding strong enough electromagnetic frequencies to charge his battery:

http://www.activistpost.com/2013/02/student-invents-device-that-charges.html

[Hillbilly]

this is what Tesla was doing.

[Ponce]

this is what Tesla was doing.

Yes

V

[Dogman]

This brings to mind something that has been on my mind for a long time. Being a radio operator (ham) for many years, I have had interest in RF fields (energy) and my being in them. Back when I ran linear amps the rf field in my shack sometimes would light florescent bulbs that were not connected to anything amongst other strange things that would happen (3000 watts peak to peak).

Frequency is the key so they say, that most rf will not harm you, But I wonder?

Back in the day there was very little rf density (energy) in our environment unless you lived by a broadcast station (radio or tv ) CB or local amateur radio operator.

But today we literally swim through rf signals at density's that I think are at all time highs and growing.

Cell phones with tower's everywhere, our toys that use WiFi are becoming more common and the rf fields and around us are thick and getting thicker. (energy density)

I wonder what if any damage we are doing to our self's in the long run? There really can not have been that many study's since this kind of density has not been with us very long.

So being able to extract usable power from the rf fields that we are swimming in does not really surprise me at all.

What I wonder about is what is it doing to us in the long term exposure to rf fields and energy to us and our kids?

There has been concern in the ham radio circles for quite some time.

http://www.arrl.org/rf-radiation-and-electromagnetic-field-safety

[Hillbilly]

This brings to mind something that has been on my mind for a long time. Being a radio operator (ham) for many years, I have had interest in RF fields (energy) and my being in them. Back when I ran linear amps the rf field in my shack sometimes would light florescent bulbs that were not connected to anything amongst other strange things that would happen (3000 watts peak to peak).

Frequency is the key so they say, that most rf will not harm you, But I wonder?

Back in the day there was very little rf density (energy) in our environment unless you lived by a broadcast station (radio or tv ) CB or local amateur radio operator.

But today we literally swim through rf signals at density's that I think are at all time highs and growing.

Cell phones with tower's everywhere, our toys that use WiFi are becoming more common and the rf fields and around us are thick and getting thicker. (energy density)

I wonder what if any damage we are doing to our self's in the long run? There really can not have been that many study's since this kind of density has not been with us very long.

So being able to extract usable power from the rf fields that we are swimming in does not really surprise me at all.

What I wonder about is what is it doing to us in the long term exposure to rf fields and energy to us and our kids?

There has been concern in the ham radio circles for quite some time.

http://www.arrl.org/rf-radiation-and-electromagnetic-field-safety


I think we can be sure that if there is a "most dangerous" frequency for rf the government had or will mandate that most things operate at that frequency.

[Son-of-Liberty]

(tag)

Just remember even though there is enough energy to charge batteries it has no effect on your body.....

[vacuum]

I have a hard time believing that a visible frequency electromagnetic harvester (solar panel) wouldn't have higher performance.

[brosil]

There's a couple of companies building self powered devices that harvest power from static, vibration and physical deformation. The sensors that are cast into bridges to detect cracks are like that. One of the companies is Dust, Inc. which I remember because I like the name.