J.C.
Chiao, a professor of electrical engineering at the University
of Texas, Arlington, and Smitha Rao, a graduate research
associate at UT, Arlington, developed the so-called micro-windmill
technology based on recent advances in micro-robotic devices.
An iPhone 4 could fit about 2,040 of the
micro-windmills on its surface, each one generating electricity from ambient
wind currents.
“Imagine that they can be cheaply made on the
surfaces of portable electronics, so you can place them on a sleeve for your
smart phone,” said Chiao.
“When the phone is out of battery power, all you need
to do is to put on the sleeve, wave the phone in the air for a few minutes and
you can use the phone again.”
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