Disney has developed a new method to remotely control puppets without the use of motors. The pair of robot arms shown in the picture and video below are connected only by flexible pneumatic tubing (tubing that uses compressed air). There are no pumps, valves, sensors, motors, or electronic controllers used.
The connection between the two arms is made entirely by air pressure, allowing a large separation between the character and the puppeteer. Any motors needed for the puppets can be placed in the body, leaving the arms much lighter for faster and more graceful motion. This is not exactly ideal for rides like Pirates of the Caribbean, but it can help animatronic characters used in movies and TV shows appear to be far more lifelike and fluid. To see more go over to Gizmodo.