Walking Could Recharge Your Smartphone or MP3 Player
Agam Shah, IDG News
Researchers at Georgia Institute of Technology are harvesting energy through activities like walking or running that could power or recharge smartphones and portable music players in the future.
Consumer electronics are quickly getting smaller, but the batteries cannot keep up, said Zhong Lin Wang, professor and director of the Center for Nanostructure Characterization at Georgia Institute of Technology. Smaller devices tend to consume less power, and the lab is trying to come up with ways in which motions like tapping, bending or walking could generate energy to keep the devices running.
The researchers have developed tiny nanowires made of zinc oxide that are capable of generating an electric field through force or motion. Zinc oxide has piezoelectric potential, which provides the ability for nanowires to convert mechanical energy into electric energy.
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