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All the water and air on earth gathered into spheres and compared to the Earth
via Boing Boing by Mark Frauenfelder on March 11, 2008

Dan Phiffer found this image on a message board, and by his calculations, he says it's accurate.
Left: All the water in the world (1.4087 billion cubic kilometres of it) including sea water, ice, lakes, rivers, ground water, clouds, etc.
Link(Via forgetomori)Right: All the air in the atmosphere (5140 trillion tonnes of it) gathered into a ball at sea-level density. Shown on the same scale as the Earth.
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