Sailors know that Nature's forces are always at work, affecting the boat and its surroundings in countless ways. 'The Why Book of Sailing' examines these laws and how they come to bear on the sailboat, with intriguing, surprising, and entertaining answers to such questions as these: Why does it get ever harder to make your sailboat go ever faster? Why are golf balls dimpled but hulls are smooth? Why do boats float higher in salt water? Why are tsunamis...