Tornadoes, earthquakes and volcanoes - experience the devastating power of nature in stunning, fully-interactive 3-D, thanks to a new publishing phenomenon. Using Augmented Reality technology (AR), this book works with your computer to bring the awesome forces of nature to life. Just place the trigger cards in front of your computer's webcam to see a tornado as it blows a house away, watch a volcano erupt, or to see how an earthquake makes the earth tremble. From floods and drought, to forest fires and avalanches, discover why extreme natural events occur and learn about their impact on our planet.