BOSTON ( TheStreet) -- When Westinghouse Electric unveiled a seven-foot-tall aluminum robot named Elektro at the 1939 World's Fair, Americans fell in love with the notion of anthropomorphic machines doing work for them.Robots, now commonly seen roaming factories and vacuuming floors, create less of a stir 70 years later. In terms of whiz-bang entrepreneurship, investors will probably remember 2009 as the year of solar cells, smart grids and smarter drugs.
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