News

  1. Chemistry

    Building artificial cells from scratch

    Scientists have created artificial cells that can live and produce proteins as their natural counterparts do, but can't replicate.

    By Alexandra Goho
  2. Tech

    Thrifty trucks go with the flow

    Forcing air through strategically placed slits on a tractor trailer results in a major boost in fuel economy.

    By Peter Weiss
  3. Earth

    Early Warning: United States to deploy 32 more buoys for sensing tsunamis

    On Jan. 14, the Bush administration announced a $37.5 million program to expand the nation's tsunami-warning capabilities.

    By Sid Perkins
  4. Tech

    Micro Musclebot: Wee walker moves by heart cells’ beats

    A new breed of mobile micromachine made of living heart tissue, gold, and silicon takes a step with each rhythmic contraction of its muscle cells.