Robot
In 1928, one of the first humanoid robots, Eric, was exhibited at the annual exhibition of the Model Engineers Society in London, where it delivered a speech. Invented by W. H. Richards, the robot's frame consisted of an aluminium body of armour with eleven electromagnets and one motor powered by a twelve-volt power source. The robot could move its hands and head and could be controlled through remote control or voice control. Both Eric and his "brother" George toured the world.
Robotic art
In the thirteenth century AD, Badi Al-Zaman'Isma'il Al-Razzaz Al-Jazari was a Muslim inventor who devoted himself to mechanical engineering. Like Hero, he experimented with water clocks and other hydraulic mechanisms. Al-Jaziri’s life's work culminated in a book which he called "The Book of Knowledge of Ingenious Mechanical Devices", completed in 1206 AD, and often known simply as "Automata". In Europe, also in the thirteenth century, Villard de Honnecourt is known to have built mechanical angels for the French court, and in the fifteenth century Johannes Muller built both a working mechanical eagle and a fly.