Did you know? Mass of all the humans on Earth (358 billion kg) is 250 thousand x Mass of the SpaceX Falcon Heavy rocket (1.421 kg)
Number of airports in the United States (13,510 )
/fact/number-of-airports-in-the-united-states
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.