Flying Microchips The Size Of A Sand Grain Could Be Used For Population Surveillance

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A 3D microflier next to a pencil tip for scale. Northwestern University

Northwestern University

It’s neither a bird nor a plane, but a winged microchip as small as a grain of sand that can be carried by the wind as it monitors such things as pollution levels or the spread of airborne diseases.

The tiny microfliers, whose development by engineers at Northwestern University was detailed in an article published by Nature this week, are being billed as the smallest-ever human-made flying structures.

→ Continue reading at NPR - Technology

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