Pittsburgh abuzz with robotic art

By JENNIFER C. YATES , Associated Press Writer, Technology / Other

Greg Witt, left, and Joey Hayes prepare their green roller coaster that twists and turns above the Children's Museum of Pittsburgh entrance as part of Pittsburgh's Robot 250, Wednesday, July 9, 2008. This robotic installation isn't for human riders; the coaster's cars are instead filled with plants. Robot 250 is a citywide celebration of robotics that aims to take technology out of university classrooms and make it accessible to everyone. Dubbed to coincide with the city's commemoration of its 250th anniversary, Robot 250 begins Friday as a mix of robotics and artistry. (AP Photo/Keith Srakocic)

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(AP) -- A green roller coaster twists above the entrance to the Children's Museum of Pittsburgh. But this attraction isn't for human riders - the coaster's cars are filled with plants and a solar panel that triggers the ride to stop and start.

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