'Self-powered e-watch is powered completely by wrist movements'

[Delta4Embassy]

http://phys.org/news/2015-11-self-powered-e-watch-powered-wrist-movements.html

"(Phys.org)—Researchers have created a self-powered electronic watch that harvests energy from the wearer's wrist movements for continuous operation. By combining two different energy conversion mechanisms (electromagnetic and triboelectric) in a single hybrid nanogenerator, the device can harvest significantly more energy than previous harvesters that use only a single mechanism.

The scientists, led by Ya Yang at the Beijing Institute of Nanoenergy and Nanosystems in China, and Zhong Lin Wang at the Georgia Institute of Technology in the US, have published a paper on the hybrid nanogenerator in a recent issue of ACS Nano."


Neat! Lemme know when I can power my apartment by masturbating.

 

[Billy_Kinetta]

My dad had a self-winding watch that "harvested energy from the wearer's wrist movements" in the mid-1950s.

Just sayin'.

Edit: I still have it, and it still works.

 

[Auld Phart]

My dad had a self-winding watch that "harvested energy from the wearer's wrist movements" in the mid-1950s.

Just sayin'.

Edit: I still have it, and it still works.

I remember a comic strip, Mutt and Jeff(?), about a self winding watch.

One of the characters put it on a dogs neck to wind it, dog came back without the watch.

 

[Delta4Embassy]

LOL! Imagining how much movement's required and some wearer walking around waving his arms like a crazy person.

 

[Billy_Kinetta]

Nah. A few twists in the morning and simple everyday movements will keep it wound.

 

[Delta4Embassy]

Signaling comrades, or powering his watch, no one knows for sure.

 

[waltky]

Nanogenerator uses human movement to power devices...

Swiping Could Power Future Devices
December 12, 2016 - One day soon, your smart phone could be charged by finger swipes, according to new research.

Writing in the journal Nano Energy, researchers from Michigan State University say they have developed a film-like device “to harvest energy from human motion.” The researchers say the “nanogenerator” was able to operate an LCD touch screen, 20 LED lights and a flexible keyboard with the device and without a battery.

Researchers at Michigan State University say they've developed a film that can turn swiping into energy for electronic devices.​

The film is made using a silicone wafer upon which thin layers of silver, polyimide and polypropylene ferroelectret are added. Ions are added and create energy when “the device is compressed by human motion.” "What I foresee, relatively soon, is the capability of not having to charge your cell phone for an entire week, for example, because that energy will be produced by your movement,"said Nelson Sepulveda, associate professor of electrical and computer engineering and lead investigator of the project..” Furthermore, researchers say the device is “lightweight, flexible, biocompatible, scalable, low-cost and robust.”

Moreover, they add that the device becomes more powerful when it is folded. "Each time you fold it you are increasing exponentially the amount of voltage you are creating," Sepulveda said. "You can start with a large device, but when you fold it once, and again, and again, it is now much smaller and has more energy. Now it may be small enough to put in a specially made heel of your shoe so it creates power each time your heel strikes the ground."

Swiping Could Power Future Devices