Uncategorized

  1. Materials Science

    Double-laser approach makes one thin line

    Erasing and stenciling could refine tiny printing for sculpting nano-sized devices.

    By Rachel Ehrenberg
  2. Anthropology

    African pygmies may be older than thought

    A new DNA analysis indicates that pygmy hunter-gatherers and farming groups in Africa diverged from a common ancestral population around 60,000 years ago.

    By Bruce Bower
  3. Health & Medicine

    Touch and sight push each other around

    When the fingers feel downward motion, the eyes see upward motion.

    By Laura Sanders
  4. Health & Medicine

    The other, friendly fat

    Brown fat is active in adult humans and could help keep people lean.

    By Tina Hesman Saey
  5. Health & Medicine

    Acid reflux link to asthma now in doubt

    Heartburn drugs called proton pump inhibitors, commonly prescribed for asthma patients, don’t prevent breathing attacks.