Engineering professor John Rogers and his team at Northwestern drew on inspiration from nature to create the microchips, which are the size of a grain of sand. The chips do not have engine-driven propellers. Instead, their wings catch the wind like maple tree or dandelion seeds; the most direct inspiration came from the star-shaped seeds of the tristellateia plant, a flowering vine.
The research appeared on the cover of the September 23 issue of Nature.
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