图书标签: 绘本 火车
发表于2024-11-25
Ultimate Trains pdf epub mobi txt 电子书 下载 2024
Today's trains are sleeker, greener and faster than ever before. Tomorrow's trains could travel through space at 23 times the speed of sound -- nearly 30 000 km/h (19 000 m.p.h.)! But did you know that train technology goes back 5 000 years? All aboard Ultimate Trains, which takes readers on a trip through the evolution of train technology, bringing to life the trains of yesterday, today and tomorrow. Five "Build It Yourself" experiments -- simple enough to create at home -- put train technology into action. Readers can learn how to build a steam engine from a soda pop can, test an electromagnetic track and go online to construct their own magnetic levitation train.
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Ultimate Trains pdf epub mobi txt 电子书 下载 2024