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  1. Health & Medicine

    Predicting Parkinson’s

    Scientists are searching for ways to detect the earliest signs in the brain of Parkinson's disease.

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  2. Math

    Quilting Pi

    The digits of pi inspire artistic quilts. For more math, visit the MathTrek blog.

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  3. Humans

    From the May 2, 1936, issue

    Atomic bullets, exploding cornstarch, and an unstable solar system.

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  4. Tech

    Aircraft Photos

    The Dryden Flight Research Center is NASA’s center for aeronautical flight research and atmospheric flight operations. The Center’s Web site has an extensive photo collection, which features images of many of the research and experimental aircraft flown at the test facility, from the 1940s to today.