Real scientific breakthroughs sometimes come out of the most surprising and unpromising work. How to Make a Tornado is about the margins of science - not the research down tried-and-tested routes, but some of its zanier and more brilliant by-ways. Investigating everything from what it's like to die, to exploding trousers and recycled urine, this book is a reminder that science is intensely creative and often very amusing - and when their minds run free, scientists can fire the imagination like nobody else.