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Math

May the Best Team Win

In sports leagues and playoffs, the strongest teams often don't triumph, but redesigning the schedule of games can improve their chances.

Humans

From the September 4, 1937, issue

Growling grizzlies star at Yellowstone, radioactive dating puts Earth's age at less than 3 billion years, and a suggestion that overanxious parents can turn their children into stutterers.

Earth

How Green Are Your Travels?

This website offers a rough gauge of the carbon-dioxide emissions associated with flying around the country. Just plug in a starting point and destination and it gives you a round-trip estimate of the greenhouse-gas “footprint” of your travel.