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  1. Life

    Genes & Cells

    Extreme sibling rivalry, mitochondrial breakups and tubular cells in this week’s news.

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  2. Beer bubble math

    The rate of change of bubble volume. If this quantity is positive, the bubble will grow; if it’s negative, it will shrink. A constant that depends on the temperature and the specific gas in the foam. (The foam on top of a glass of Guinness lasts unusually long because Guinness uses nitrogen in addition to […]

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  3. Math

    Beer bubble math helps to unravel some mysteries in materials science

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  4. Health & Medicine

    Body & Brain

    Fat joins suite of tastes, plus crossword vision, metastasis clues and more in this week’s news.