In Pictures: 10 really small devices that could change the world

From the world's tiniest semiconductor laser to a bee-sized flying robot, these minuscule devices -- many of which cannot be seen by a human eye -- are changing our world.

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The eyes have it Think your smartphone is small enough? David Wentzloff has been making tiny computers for years at the University of Michigan, but his latest project is a self-contained computing device that is about 1 cubic millimeter wide. Roughly the size of a pinhead, this nano-computer has two processors, a camera and a pressure sensor as well as a wireless transmitter and antenna. The whole thing is powered by a tiny solar cell and battery pack.

It's been designed and built to be implanted into the eyes of glaucoma patients to measure and transmit their ocular pressure every 15 minutes.

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In Pictures: 10 really small devices that could change the world

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