Axels and Wheels - Robin Twiddy - Bog

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 these mechanical marvels and more are revealed in Making Things Work.