iCandy: Checking Things Out

A space telescope's mirror array, a liquid scanner at airports, and a body-mounted video camera are among the tools for examining what's around us

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Photo: John Gress/Reuters
The electrodes attached to this woman’s thigh pick up signals that tell the avatar on the screen to flex its knee and ankle. The exercise is aimed at training a computer that will eventually control a robotic prosthesis to interpret the signals. Researchers at the Center for Bionic Medicine at the Rehabilitation Institute of Chicago will fit the amputee with the special prosthesis, which she will be able to manipulate with her thoughts.

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