. . . "Robots A2Z" . "Robots A Z"@en . . "Discusses robots, automatons, and other mechanical devices, the earliest of which was developed as part of an Egyptian water clock around 2000 B.C."@en . . "Discusses robots, automatons, and other mechanical devices, the earliest of which was developed as part of an Egyptian water clock around 2000 B.C." . . . . . . "Robots A₂Z" . . . . . . . "Juvenile works"@en . "Juvenile works" . . . . "Robots A Z" . "Robots AZ"@en . .