Uncategorized

  1. Math

    Binary Dice

    A set of specially marked, black-and-white dice suggests novel puzzles and games.

    By Ivars Peterson
  2. Earth

    Invisible Rivers

    The fresh water that seeps from continents into coastal waters via submarine springs is a phenomenon that many scientists are just beginning to appreciate, model, and accurately measure.

    By Sid Perkins

  3. 19601

    Nothing was said in your article about the situation in Canada, where killing bears for their gallbladders and paws is a serious problem. I suggest that you contact TRAFFIC North America and the World Wildlife Fund–Canada for detailed information on the problem in Canada. Abby SchwarzVancouver, British Columbia The article states, “Traditional medicine has been […]

    By Science News
  4. Humans

    A Galling Business

    Efforts are under way to halt both poaching and inhumane farming of bears to supply bile, an ingredient used in traditional Asian medicine.