Uncategorized

  1. Earth

    Child-care sites, health threats

    Federal agencies have completed the first national study of lead, pesticides, and allergens in U.S. child-care facilities.

    By Ben Harder
  2. Animals

    Hawkmoths can still see colors at night

    For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.

    By Susan Milius
  3. Tech

    Resistancefree wire takes long jump

    A wire-making company has demonstrated a process that yields potentially inexpensive, high-current superconducting wires about 10 times longer than previous prototypes.

    By Peter Weiss

  4. 19203

    Many people who are exploring the possible connection between childhood vaccines and autism claim that the culprit is not the vaccines themselves, but the mercury-containing preservative thimerosal.