Uncategorized

  1. Health & Medicine

    Food Colorings

    Many deeply hued plant pigments appear to offer health benefits, from fighting heart disease and obesity to preserving memory.

    By Janet Raloff
  2. Tech

    Frankenstein’s Chips

    As evidence mounts that drug-safety trials can miss dangerous effects, scientists are building living, miniature models of animals and people to enhance drug and chemical tests.

    By Peter Weiss
  3. Math

    Artful Routes

    Finding the shortest routes linking cities can also produce intricate continuous-line portraits.

    By Ivars Peterson
  4. Earth

    Climate Storm: Kyoto pact is confirmed, but conflict continues

    Controversy flared over the link between climate change and increasing storm activity at the first international climate change meeting since the implementation of the Kyoto Protocol was assured.