To test their algorithm, the researchers designed and built a system of “smart pebbles”–cubes about 10 millimeters to an edge, with processors and magnets built in. [Photo: M. Scott Brauer via MIT ...
Twine, a puck filled with sensors, detects anything from moisture to magnetism: Stick it anywhere, and it’ll tweet status updates at your command. And there’s no coding skills required.
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