This is a brilliant book bursting with big ideas. Meet the Brainwaves, hilarious little mischief makers with big ideas. Pint-sized pals who'll show you around and tell you all about key inventions, the breakthroughs that lead to them and spectacular spin offs which followed ...When was the wheel first used? Who were the bright sparks that thought of the light bulb? And what connects a teapot to a 400 kph train? Find out all about more than 300 key inventions that changed the world (and lead to almost everything else that's ever been invented). Fantastic fold-out pages reveal the who, what, when, where and why of each invention and explain the way it transformed the way we live.