News

  1. Animals

    Birds may inherit their taste for the town

    Tests switching cliff swallow nestlings to colonies of different sizes suggest the birds inherit their preference for group size.

    By Susan Milius
  2. Math

    Proof clarifies a map-folding problem

    Researchers have developed an efficient algorithm to determine, given a collection of creases on a piece of paper, whether a sequence of simple folds produces a flat result, like a folded road map.

    By Ivars Peterson
  3. Chemistry

    Researchers stretch for improved surfaces

    A surprisingly simple, new technique could create better coatings for everything from medical implants to ship hulls.

    By Jessica Gorman
  4. Tech

    Ink-jet dots form transistor spots

    A new technique makes ink-jet printing of transistor circuits possible from conductive polymer inks.