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This is a tremendous site on the internet that tells you all about how things work - from computers, to machines, to holidays, to your body -- you think of it, it will tell you how it works!

To see the full site, you will need to go on the internet, but in the meantime, here are a few pages from the site about your machines topic.

How pendulum clocks work

Inside an electric screwdriver

How a block and tackle works

Inside a bathroom scale

How gears work

Inside a wind-up alarm clock

How bicycles work

Inside a combination lock

About the author of this site

Inside an electric motor

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