The comet that killed the dinosaurs 65 million years ago was equivalent to released as much energy as 100 trillion tons of TNT, more than a billion times more than the atom bombs that destroyed Hiroshima and Nagasaki.

The comet that killed the dinosaurs 65 million years ago was equivalent to released as much energy as 100 trillion tons of TNT, more than a billion times more than the atom bombs that destroyed Hiroshima and Nagasaki.

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in ancient Persia, engineers built a type of evaporative cooler that could store ice, even in the middle of summer. It is called a Yakhchal.

in ancient Persia, engineers built a type of evaporative cooler that could store ice, even in the middle of summer. It is called a Yakhchal.

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pinoytumblr:

Blues and Greens in Coron, Palawan
(theafterhours-redux)

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