From space Earth is simply a pale blue dot. It’s blue because of all the water on its surface. In fact, a little more than 70 percent of the Earth’s surface is covered by water, most of it ocean. But how much water is there, really? This image, produced by the U.S. Geological Survey (USGS), shows all of Earth’s water in three little orbs. The big one, over the western U.S., is all the water in the world—everything from the salty oceans to the water found deep underground. It looks small compared with the size of Earth, but that sphere’s volume is 1.38 billion cubic kilometers and it is about 1,385 kilometers in diameter. The smaller floating sphere in the middle at 272.8 kilometers in diameter represents a subset of that bigger sphere, showing freshwater in the ground, lakes, swamps and rivers. It doesn’t include permanent ice- and snowpacks locked in the polar ice caps—which is where much of the world’s freshwater is held; humans, unfortunately, do not have access to this supply. The tiny speck next to it represents and even smaller subset of all the water– just the freshwater in lakes and rivers. It, too, seems tiny by comparison with the big orb, but it is 56.2 kilometers in diameter. (via It’s a Water-Full World: Scientific American Gallery)
I can’t wait to use this math formula in real life
(Source: nectarineteen)
Spoilers for the last scene of Season Three:
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INTERIOR, church, decorated for a small wedding ceremony.
Priest: Do you, John Hamish Watson, take this woman, Mary Morstan, to be your lawfully-wedded wife?
John: I d-
Doors bang open at the back. Everyone gasps and turns to see what is happening.
Sherlock: John! Please wait! There is something you must know!
John: Sherlock, what the-
ROLL END CREDITS AND THEME MUSIC
BASK IN THEIR ANGUISH FOR ANOTHER 18 MONTHS
