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Re:Tiny Robotic Bee Assembles Itself Like Pop-Up Book by glhaynes on Saturday February 18, 2012 @09:13AM (#3606610)
At about 0:58 in the video linked from the Wired article, the narrator says "and two piezoelectric inserts for actuation."
Re:Tiny Robotic Bee Assembles Itself Like Pop-Up Book by alt_ on Saturday February 18, 2012 @09:27AM (#3606631)
Ah, yes. Thanks. I must have glossed over that when watching it.