Abstract
The following quote was obtained by the news editors from the background informa tion supplied by the inventors: “An example robot may have a plurality of member s forming the robot’s legs and arms. The motion of these members may be controll ed by actuators such as hydraulic cylinders and motors. The design of these actu ators determines the performance characteristics of the robot such as how fast t he robot can respond to commands and external disturbances. Design factors that affect performance of the robot may include rotary inertia of the actuator and g ear ratio of a transmission coupled thereto, among other factors.”