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.
Mario Taddei
Among the vast number of projects of Leonardo, there is a “mechanical knight” that has entered into the common imagination. In 1957 Carlo Pedretti was the first person to discover it, hidden amongst da Vinci’s countless designs. The mechanical knight was again mentioned in 1974, in the Codex Madrid edited by Ladislao Reti. Nevertheless, there was no attempt to reconstruct it until 1996. It was then that Mark Rosheim published an independent study of the robot, followed by a joint enterprise with the Florence Institute and Museum of the History of Science which mounted an exhibition with an entire section dedicated to Rosheim’s research on the subject. However, it was only in 2002 that Rosheim built a complete physical model for a BBC documentary. Since then, many exhibitions and museums of da Vinci’s models have included a soldier on wheels labeled, “Leonardo’s robot”.