Uncategorized

  1. Chemistry

    Clean hydrogen fuel from corn?

    A new reactor can convert ethanol from corn into hydrogen fuel with enough efficiency to make the process economical.

    By Alexandra Goho
  2. Tech

    Silicon goes optical

    The advent of a fast, light-manipulating microdevice made from silicon suggests that speedy optical-fiber links now too expensive for broad use in businesses and homes may soon become widespread.

    By Peter Weiss
  3. Health & Medicine

    Quantum sentinels

    Quantum physics may soon help physicians track whether a cancer has spread.

    By Erica Klarreich
  4. Health & Medicine

    Gene transfer puts good fats in mammals

    Scientists have used a worm gene to genetically engineer mice whose tissues are unusually rich in the heart-healthy fats found mainly in fish.