Technology at Work: At The Factory

How are car body peices joined together?
What does a robot arm do?
Why are wind tunnels important?
A factory is a building where workers make things to sell. In most factories workers have different jobs but they all help to make the same thing. For example, in a car factory some people make the body of a car and others fit the seats inside. Workers use machines to help them work faster and for a longer time without getting tired.