Three feet long, 2 feet wide and moving on 14-inch diameter wheels, the Explorer has a video screen and a microphone ... Csikszentmihalyia#39;s droid has some distinct advantages over its human counterparts. ... If they repair it. Send it on its way.aquot; aquot;The social aspects are always the most interesting part, aquot; reflects U.C. Berkeleyanbsp;...
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