Computers have revolutionized the way people work and
relax. But computers can not make things alone.They are used
to control machines. Machines perform the hard work and make our
lives easier.
Today there are machines to do almost anything from building
skyscrapers and taking us into space to brushing our teeth. Through
the use of mechanisms such as levers, gears, pulleys and wheels,these
machines can carry out tasks that might take a hundred people. Despite
the huge range of machines around, most use the same few simple mechanisms.
In this module you are going to build mechanisms and use
them to perform tasks that demonstrate just how they make our lives easier.