Did you know?
Mass of a Block IIR GPS Satellite in orbit (1,080 kg) is 2.5 thousand x Mass of a typical (soccer) football (430 g)
Tweet this comparison
Land used for arable in Namibia (2011) (460 km^2)
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.