Robots now have many uses. Many factories use robot to do lots of hard work quickly and without many mistakes. These are 'industrial' robots. The military use robots to find and get rid of bombs. If a robot makes a mistake, the robot is damaged or destroyed, which is the better than a person being killed. There are also robots that help at home, to vecuum or cut grass, for example. Such robots must learn about the area of work. There are two robots on Mars. Because it takes a long time to send a signal from Earth to the Mars, the robots do much of there work alone, without commands from Earth. People still think of robots as having a shape like a person-two legs,two arms,and a head. ASIMO is one robot that helping scientists learn how to design and program robots. It can walk, which is not easy to program.