Things I didn’t know (nautical edition)
The ratio of fresh water on Earth to the planet’s salt water is 1:6750
— The ratio of fresh water on Earth to the planet’s salt water is 1:6750
— The redder the rainbow, the bigger the raindrops
— Tides are higher when air pressure is lower
— A “thalweg” legally is the boundary between states. It follows the lowest points in a river or stream valley.
— Sailors used to shit into the hold if they weren’t watched. (Much warmer than going over the side at the “head” of the boat.)
— “There is no mention of tides in the Bible as the Mediterranean is too small to generate big tides.”
Photo credit: Wikimedia commons
More from Foreign Policy

Can Russia Get Used to Being China’s Little Brother?
The power dynamic between Beijing and Moscow has switched dramatically.

Xi and Putin Have the Most Consequential Undeclared Alliance in the World
It’s become more important than Washington’s official alliances today.

It’s a New Great Game. Again.
Across Central Asia, Russia’s brand is tainted by Ukraine, China’s got challenges, and Washington senses another opening.

Iraqi Kurdistan’s House of Cards Is Collapsing
The region once seemed a bright spot in the disorder unleashed by U.S. regime change. Today, things look bleak.