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Length of the Indianapolis 500 motor race (805 km) is 40 thousand x Length of a cricket pitch (20.12 m)
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Speed of China's Shijiazhuang?Wuhan high-speed train (350 km/h)
If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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