Three wheels under Ava
Underneath Ava are three wheels that allow for a wide range of motion. The company is using different colored lighting, inspired by one engineer's truck lights, to indicate its status. Red means it can't go, for example, and pink means it needs to be pushed away slightly.
April 30, 2012 11:06 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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