Uncategorized

  1. Materials Science

    This Won’t Hurt . . . Tiny needles deliver drugs painlessly

    Microscopic needles may provide a painless alternative to syringes and patches.

    By Kate Ramsayer
  2. Earth

    Lake Retreat: African river valley once hosted big lake

    The valley of the White Nile in Africa may long ago have held a shallow lake that sprawled 70 kilometers across and stretched more than 500 km along the river.

    By Sid Perkins
  3. Chemistry

    The March of History: Terra-cotta warriors show their true colors

    As archaeologists continue to excavate the famous Chinese terra-cotta warriors, a new restoration technique could preserve the figures' paint coats, which normally peel off when exposed to the elements.