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  1. Tech

    Congealing useful oddballs

    A device for manipulating liquid droplets turns out to have the unexpected ability to fabricate tiny, solid balls with unusual, and potentially useful, patterned structures inside.

    By Peter Weiss
  2. 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
  3. 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
  4. Humans

    Letters from the January 29, 2005, issue of Science News

    Check it out In “Profiles in Melancholy, Resilience: Abused kids react to genetics, adult support” (SN: 11/20/04, p.