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Maxwell’s Demon illustration

ORDER FROM DISORDER  Maxwell’s Demon (illustrated above) is a hypothetical creature that could illegally decrease entropy, or disorder, by separating faster molecules (blue) from slower ones (green) within a box of gas. Scientist have probed this demon’s memory for the first time.

Greek amphitheater in Epidaurus

NOW HEAR THIS  This ancient Greek amphitheater in Epidaurus is renowned for its acoustics, but good luck hearing whispers if you’re sitting in the back row.

computer simulation of an ultraclold cloud of atoms

CHILL OUT  Scientists create ultracold clouds of atoms to study a state of matter called a Bose-Einstein condensate, shown above in a computer simulation.

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