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  1. Chemistry

    A safer antioxidant?

    Scientists have developed a synthetic antioxidant that won't, at high doses, foster the tissue damage the compounds are meant to prevent.

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  2. Tech

    Worms may spin silk fit for skin

    Silk cocoons could become puffs of valuable human proteins if a new bioengineering method pans out.

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  3. Astronomy

    Mature Before Their Time

    Some galaxies were in place and forming stars at a prolific rate when the universe, now 13.7 billion years old, was just an 800-million-year-old whippersnapper.

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  4. Physics

    New equation fits nitrogen to a T

    An elaborate, new equation that yields more accurate values for nitrogen's properties might have a multimillion-dollar impact in the cryogenic fluids industry.

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  5. Physics

    Gecko toes tap intermolecular bonds

    For scurrying upside down on smooth ceilings and other gravity-defying feats, lizards known as geckos may exploit intermolecular forces between the surface and billions of tiny stalks under their toes.

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  6. Health & Medicine

    Stress and sleepless nights

    Insomnia is associated with increases in stress hormones, boosts that persist all day and night.

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  7. Health & Medicine

    Gene causes body-fat disorder

    A gene linked to a form of muscular dystrophy also causes a disease that deposits fat unevenly after puberty.

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  8. Health & Medicine

    Hormone treats autoimmune disease

    A medication combining the drug prasterone and hormone dehydroepiandrosterone, or DHEA, stabilizes or improves symptoms of lupus.

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  9. Predators shape river world top-down

    Hunting and no-hunting zones allow a rare test of the much-debated proposal that big carnivores shape their ecosystems from the top down.

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  10. Why did the turtle cross the road?

    A survey of painted turtles that perished while trying to cross a highway suggests that the freshwater species need more dry land than expected.

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  11. Humans

    From the February 25, 1933, issue

    ADAM AND EVE IN THE OLDEST CITY In the oldest city that archaeologists have ever explored they have dug up “Adam and Eve” and the serpent. There they are, the figures of a man and a woman, which have been stamped on clay with a seal. They are a dejected human pair, bent, and stumbling […]

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  12. Tech

    A Theremin’s Electronic Wail

    A pioneering electronic instrument played without touch, the theremin can produce a wide range of eerie sounds. Introduced by Lev Sergeyvich Termen in 1921, the instrument responds to hand motions, which control the pitch and loudness. Information about the theremin is available at various Web sites, and if you’re dying to play it yourself, you […]

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