How to Fossilise Your Hamster - How can you measure the speed of light with chocolate and a microwave? Why do yo-yos yo-yo? Why does urine smell so peculiar after eating asparagus (includes helpful recipe)? How long does it take to digest different types of food? What is going on when you drop mentos in to cola? 100 wonderful, intriguing and entertaining scientific experiments which show scientific principles first hand - this is science at its most popular.