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Time since building of the Great Pyramid of Giza / Cheops / Khufu (4,580 y) is 2 x Time since the birth of Archimedes (2,300 y)
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Forest in Indonesia (2011) (980,000 km^2)
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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