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  1. Tech

    Retro RAM

    A prototype memory chip stores data bits using carbon nanotubes as mechanical switches.

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  2. Health & Medicine

    Night lights may foster cancer

    Regularly working through the night appears to come at a steep cost—a heightened risk of cancer.

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  3. Humans

    Transport emissions sizable, and rising

    Almost one-sixth of the carbon dioxide produced by human activity since the beginning of the Industrial Revolution resulted from the transport of goods and people—an emissions fraction that's increasing by the year.

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  4. Humans

    Judging Science

    Scientists and legal scholars argue that studies conducted with litigation in mind are not necessarily more biased than research done for other purposes.

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  5. Health & Medicine

    Blind Bet

    Although the chances of success are far from certain, many desperate horse owners are gambling on stem cell therapy for their injured equine friends.

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  6. Health & Medicine

    The State of Our Nutrition

    With the new year, people start thinking about dieting and developing better overall health habits. Want to know which regions of the nation started out the year as the most and least healthy—and by what measures? Turn to new maps prepared by the Agriculture Department and click on the state(s) of interest. Agency scientists have […]

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  7. Humans

    From the January 8, 1938, issue

    Social scientist named AAAS president, rarest of the rare found high in the air, and an unusual joint for a skull.

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  8. Physics

    Bathtub Optics: Bending light also shifts it sideways

    When light bends at an interface, it also shifts depending on its polarization. With animation.

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  9. Positive Signal: Lone protons carry messages between cells

    In roundworms, protons carry signals from cells in the intestine to muscle cells, raising the possibility that protons might act as neurotransmitters in mammal brains.

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  10. Seeing Again: Blind fish parents have fry that see

    Cross two strains of blind cavefish that have lived in the dark for a million years, and some of their offspring will be able to see.

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  11. Astronomy

    Heavy Find: Weighty neutron stars may rule out exotic core

    Neutron stars may be the weirdest stars in the universe, but they don't seem to be very strange, a weighty new report finds.

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  12. 19915

    This article says that the companion star of the pulsar PSR B1516+02B must be “tiny” because it cannot be seen. Isn’t it possible that the companion is made of dark matter? Is there a “wobble” test or other way to discern between a companion that is truly tiny (low mass) and one that is perhaps […]

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