Reinventing the wheel -- naturally

Humans did not invent the wheel. Nature did. While the evolution from the Neolithic solid stone wheel with a single hole for an axle to the sleek wheels of today's racing bikes can be seen as the result of human ingenuity, ...

Spirit Rover Switches to Backward Drives

(PhysOrg.com) -- The rover team has begun driving Spirit backward as next technique for attempting to extricate the rover from the sand trap where it is embedded. The first two backward drives produced about 6.5 centimeters ...

Spirit Rover: Right-Front Wheel Rotations

(PhysOrg.com) -- Spirit's right-front wheel, which had stopped operating in March 2006, revolved with apparently normal motion during the first three of four driving segments on Sol 2117 (Wednesday, Dec. 16) but stopped early ...

Biking 2.0: MIT's big wheel in Copenhagen (w/ Video)

Yesterday, Dec. 15, at the Copenhagen Conference on Climate Change, MIT researchers debuted the Copenhagen Wheel -- a revolutionary new bicycle wheel that not only boosts power, but can keep track of friends, fitness, smog ...

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