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  1. Nutrition society president says eat less, move more

    Physician Robert Russell became president of the American Society for Nutrition earlier this year. A policy consultant to the National Institutes of Heath, Russell spent a quarter century with the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University in Medford, Mass., most recently as its director. He has authored hundreds of […]

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  2. Math

    When intuition and math probably look wrong

    A twist on the Two Children Problem shows how information can steer what looks probable.

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  3. Explaining the equation behind the oil spill disaster

    Catastrophes come in all shapes and sizes, but some basic causative principles underlie most of them.