Side view of a micro-windmill as seen in a scanning electron microscope (effective magnification about 1000X) (Photo: U of Texas at Arlington)
Close up of a micro-windmill (Photo: U of Texas at Arlington)
1.8 mm-wide windmill on a US Lincoln penny (Photo: U of Texas at Arlington)
Professor J.C. Chiao and his postdoc Dr. Smitha Rao of the University of Texas at Arlington have developed a MEMS-based nickel alloy windmill so small that 10 could be mounted on a single grain of rice. Aimed at very-small-scale energy harvesting applications, these windmills could recharge batteries for smartphones, and directly power ultra-low-power electronic devices.
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