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Tropical Storm Harvey

MATH GETS REAL  Chaos theory explains why it’s so difficult to predict weather — a small change in conditions at any point in time can have a large effect on future conditions in, for example, a hurricane’s trajectory (Tropical Storm Harvey shown).

guy writing pi

NOT PIOUS  Pi, the ratio of a circle’s circumference to its diameter, is revered as an all-important number in mathematics. But some are starting to question that devotion.

prime numbers

PRIME TIME  The largest known prime number has more than 23 million digits — a new record. 

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