When the universe decided to hide a spectacular lake in the high country of northeastern Arizona, it apparently forgot to tell most people about it, and Lyman Lake State Park near St. Johns has been ...
Particles as different as soap bubbles and ball bearings can be made to arrange themselves in exactly the same way, according ...
Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.
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