Why is ice slippery? Can a spider catch itself? What glue makes apples crunch? Marty Jopson, a scientific expert and popularizer of science, reflects on the many amazing things and phenomena that we face every day, and in his reasoning he relies on the results of the latest research. Why do tears flow from onions, can you remember a dream, but how to grow a limb? In this book you will find answers to these and many other, sometimes even the most unexpected questions.