Levers & pulleys
Part of the MAKING THINGS WORK series
Get your brain into gear and switch on to science! These technical titles will get you buzzing as you find out what makes a bell ring, a circuit connect and a motor move.
We've levered in loads of facts and figures to pull you into a whole world of amazing design technology.
It's all around you from your doorbell to your dishwasher!
All thedse mechanical marvels and more are revealed in Making Things Work.