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172   Modern Robotics



            feedback    the adjustment of a mechanism (such as a thermostat) in
              response to changes in its environment. See also CYBERNETICS
            fovea    a thickening of nerves near the center of the eye, enabling
              much higher image resolution than is available at the periphery
            futurist    a researcher or writer who tries to identify possible future
              developments or trends. For example, some futurists believe that
              robots with human-level intelligence may arrive by the middle of
              the 21st century
            gait    the way in which the legs of an animal or robot move during
              locomotion
            hobby robot    (also called educational robot) a robot, usually part
              of a kit, designed for demonstrating principles of robotics or
              experimentation by students or hobbyists. An example is the
              popular Lego Mindstorms
            industrial robot    a robot used in a factory to move materials or
              perform repetitive tasks such as assembly or painting. The robot
              moves on a fixed track and has only limited ability to adapt to
              changes in its environment
            insect robot    a legged robot that mimics the relatively simple, dis-
              tributed nervous system of an insect. See also ROBOT SWARM
            Kismet    a robot created by Cynthia Breazeal to emulate the behav-
              iors, learning processes, and emotions of an infant
            lander    a space probe that can land on the surface of a planet but
              does not have independent movement capability. See also ROVER
            mapping    in robotics, the process by which a robot combines and
              analyzes sensor data in order to build a representation of the
              world, including the shapes and locations of objects
            MIP    a million instructions per second; a basic measure of comput-
              er processing power. By the late 1990s computers were reaching
              1,000 MIPS, or a billion instructions per second
            mobile robot    a robot capable of moving freely. It is usually
              equipped with systems for navigating around the environment
            Moore’s Law    the observation that computer power roughly dou-
              bles every 18 months to two years. This has held true since the
              1940s and has led some futurists to predict robots with human-
              like intelligence will arrive around 2040
            nanotechnology    building on a molecular or atomic scale. Such
              machines could include tiny self-replicating robots or vastly more
              powerful components for conventional robots and computers
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