Science and technology

Associated Press
In this Tuesday, Jan. 22, 2013 photo, Devon Carrow attends school from home while operating a robot in the classroom, in Orchard Park N.Y. Carrow's life-threatening allergies don't allow him to go to school. But the 4-foot-tall robot with a wireless video hookup gives him the school experience remotely. (AP Photo/David Duprey)

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