Scientific American`s Ask the Experts

Why is the night sky dark? How do dolphins sleep without drowning? Why do hangovers occur? Will time travel ever be a reality? What makes a knuckleball appear to flutter? Why are craters always round?There`s only one source to turn to for the answers to the most puzzling and thought-provoking questions about the world of science: Scientific American. Writing in a fun and accessible style, an esteemed team of scientists and educators will lead you on a wild ride from the far reaches of the universe to the natural world right in your own backyard. Along the way, you`ll discover solutions to some of life`s quirkiest conundrums, such as why cats purr, how frogs survive winter without freezing, why snowflakes are symmetrical, and much more. Even if you haven`t picked up a science book since your school days, these tantalizing Q & A`s will shed new light on the world around you, inside you, below you, above you, and beyond! Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.