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  1. Tech

    Loopy Light: Rings that delay photons may advance microchips

    Chains of tiny, high-precision, light-conducting loops of silicon may open the door to using optical circuits to carry enormous data flows within computer chips.

    By Peter Weiss
  2. Health & Medicine

    Bad to the Bone: Acid stoppers appear to have a downside

    Popular acid-reducing drugs called proton-pump inhibitors may increase the risk of hip fractures in people over 50.

    By Nathan Seppa

  3. 19776

    Without a corresponding study of bone densities, it’s not possible to determine whether the link between proton-pump inhibitors and increased fractures in people over age 50 is due to increased numbers of falls (dizziness, etc.) or to bone damage.