Building Machines: Build Your Own Working Machines

Explore the mechanics behind simple machines and mechanisms – from cogs and axles to pulleys and cranks – then build your very own construction machines. A must for budding engineers, this unique interactive book contains all you need to put together 9 working models. Just follow the simple instructions to bolt colour-coded cogs, rods and wheels onto the perforated workshop – then discover for yourself how each machine works!