Imagine the unimaginable: a world without electricity, genetics, penicillin, nuclear weapons or even plastic. Have you ever wondered how such things were discovered?

From theories of gravity and relativity to X-rays and DNA, this book looks at discoveries which - for good or for bad - have made the world what it is today.

Eureka!

There are 112 pages in this book. This book was published 2006 by Pan Macmillan .

Over two metres in height, with a bushy beard, Philip Ardagh is a full-time writer and lives with his wife and two cats in a seaside town somewhere in England.