Uncategorized

  1. Astronomy

    When Branes Collide

    A controversial new theory proposes that our universe existed as a cold, featureless void for eons, until a parallel universe floating through a hidden fifth dimension crashed into it, igniting the Big Bang.

    By Ron Cowen
  2. Animals

    Gimme, Gimme, Gimme!

    Hungry chicks cheeping in their nest have inspired a whole branch of scientific inquiry.

    By Susan Milius
  3. Math

    Sand Drawings and Mirror Curves

    To accompany the telling of a story or recounting of a fable, men of the Chokwe people in south-central Africa traditionally made sand drawings, called sona, to illustrate the tale. These highly stylized geometric illustrations also served as memory aids. Sand drawing.