Did you know?
Mass of SpaceX Falcon 9 launch rocket (542,000 kg) is 500 x Mass of a Block IIR GPS Satellite in orbit (1,080 kg)
Tweet this comparison
Estimated world population of Cattle (1 billion individuals)
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
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.