Notebook

  1. Humans

    From the June 9, 1934, issue

    Mexican archaeology, dry ice for shrinking metals, and choosing optimal flight paths for airplanes.

    By Science News
  2. Physics

    Light Projects

    This colorful, interactive Web site provides a lively introduction to the nature of light and spectra. A product of Project LITE (Light Inquiry Through Experiments) at Boston University, the site offers a variety of applets, activities, and materials on topics ranging from color mixing and afterimage effects to moire patterns and geometrical optics. A fascinating […]

    By Science News
  3. Humans

    From the June 2, 1934, issue

    The first chimpanzee twins born in captivity, increased speed and safety for aircraft, and a new pH indicator.