Did you know? Time since the birth of Fibonacci (854 y) is 20 x Time since first IBM Personal Computer launched (43 y)
Diameter of Neptune (49,200 km)
/fact/diameter-of-neptune
Link
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.