Robots have many uses. Many factories use robots to do hard work quickly and without many mistakes. They do not look like people, because they are made to do things. These are 'industrial' robots. Some robots find and get rid of bombs. If someone makes a mistake, the robot is damaged or destroyed, which is better than a person being killed. There are also robots that help at home, to vacuum or run a lawn mower, for example. Such robots must learn about the area of work.
A few robots do surgery in places inside the body where a human hand is too big.
Planet rovers are robots for exploring distant planets. Because it takes a long time to send a radio signal from Earth to another planet, the robots do much of their 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 is helping scientists learn how to design and program robots. It can walk, which is not easy to program.

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