Did you know?
Height of the Great Pyramid of Giza (139 m) is about as big as Height of Kingda Ka, highest roller coaster (139 m)
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Diameter of Mercury (4,880 km)
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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Click here for Podcast: Andrew Elliott interviewed for New Books Network.