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Distance to the Oort Cloud (748 billion km) is 5 thousand x Distance from the Earth to the Sun (149.6 million km)
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Diameter of a regulation pool ball (57.1 mm)
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.