science

Via: It's Ok to Be Smart
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Siberia's Lake Baikal, not only the world's oldest lake at ~25 million years of age, is the largest single fresh water source on the planet. The water is so deep and so pure that when it freezes it becomes a sort of cold, turquoise glass, giving an observer a lens that can see over 100 feet straight down.
A Periodic Table (literally)
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I'd almost feel bad eating at a table like this. Almost.

By Unknown
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The great John Archibald Wheeler had a ready description for how all of this fits together. "Spacetime tells matter how to move;" he said, "matter tells spacetime how to curve."