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Bullet Trains
David Biello
其他書名
Inside and Out
出版The Rosen Publishing Group, Inc, 2001-12-15
主題Juvenile Nonfiction / General
ISBN08239611339780823961139
URLhttp://books.google.com.hk/books?id=jyvAltNJ850C&hl=&source=gbs_api
EBookSAMPLE
註釋Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!