Did you know? Time since the emergence of earliest reptiles (315 million y) is 5 x Length of one Alautun, longest unit in Mayan calendar (63.1 million y)
Mass of a BIC pen (5.8 g)
/fact/mass-of-a-bic-pen
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"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.