Robots have been around in one form or another for hundreds of years. Da Vinci drew up plans for one amongst his many fantastical inventions, and Nikola Tesla designed the first radio-controlled contraption. One day, robots will take our jobs -- at least the ones that are able to be automated -- and it was a robot called Unimate back in 1956 that first started this trend. The Unimate was one of the creations of inventor and serial entrepreneur George Devol -- a man who thought the world was ready for something new.