<div><b>Learn strange trivia and pick up amazing science facts with 100 fascinating puzzles</b><br><br><i>Why do cats' eyes glow green?<br>How big would the world be if all the empty space was squeezed out of it?<br>Can you build a time machine?</i><br><br>This book is filled with fascinating scientific and mathematical puzzles, all based on real-world scientific principles. Learn why the size of the moon appears to change, the probability that any two children are girls, and what noise ice cubes make if you drop them into hot soup. The answer to each problem explains a scientific or mathematical principle in easy-to-understand terms, so not only are you solving puzzles, you are learning the secrets behind the most puzzling mysteries of the universe.</div>