Our thin skin (of water and air)

On the left: “All the water in the world
(1.4087 billion cubic kilometres of it)
including sea water, ice, lakes, rivers,
ground water, clouds, etc.”

On the right: “All the air in the atmosphere
(5140 trillion tonnes of it) gathered into a
ball at sea-level density.”

Re-blogged from Forgetomori.

Share on Facebook Share on Twitter

More from Art

What is the long now?

The Long Now Foundation is a nonprofit established in 01996 to foster long-term thinking. Our work encourages imagination at the timescale of civilization — the next and last 10,000 years — a timespan we call the long now.

Learn more

Join our newsletter for the latest in long-term thinking

Long Now's website is changing...