Engineers Make Flying Computer Chips the Size of Sand Grains

The chips may be the smallest ever human-designed flying machines.

By Charles Q. Choi
Sep 22, 2021 5:15 AMSep 22, 2021 5:16 PM
Microflier
(Credit: Northwestern University)

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 (Inside Science) — Winged microchips each about the size of a grain of sand may be the smallest-ever artificial flying structures, devices that could one day help monitor air pollution and airborne disease.

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