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  1. 19800

    E. Fred Schubert and his colleagues are to be congratulated for developing an improved antireflective coating. But the coating would not make a lens “absorb” more light. Rather, it would help the lens “propagate” the light. Nathaniel L. CohenSan Diego, Calif. “Absorb” probably was a poor word choice in reference to a lens. The point […]

    By Science News
  2. Anthropology

    Tools for Prey: Female chimps move to fore in hunting

    For the first time, researchers have observed wild chimpanzees making and using tools to hunt other animals, a practice adopted mainly by adult females and youngsters.

    By Bruce Bower
  3. Health & Medicine

    Nice Shot: Hepatitis E vaccine passes critical test

    An experimental vaccine for hepatitis E has proved nearly 96 percent protective in a test in Nepalese soldiers.