Rovables--pocket-sized robots--developed by a team at the Massachusetts Institute of Technology and Stanford University, look like miniature cars with a custom-designed circuit board for a roof. With the help of three magnetic wheels that allow them to cling, they roam freely up and down fabric for 45 minutes at a stretch, stopping in place to pose as a brooch or a bracelet. At this week's User Interface Software and Technology Symposium in Tokyo, the team described how Rovables could also have practical uses as sensors, digital displays, or for tactile feedback.
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