Uncategorized

  1. Physics

    Cellular Contortionist

    Mounting, but controversial, evidence suggests that DNA flexes more easily than previously thought, with potentially important implications for genetics, cell biology, and nanotechnology.

    By Peter Weiss
  2. Humans

    Letters from the January 13, 2007, issue of Science News

    Sunny exposition “The Antibiotic Vitamin” (SN: 11/11/06, p. 312) reminds me that in preantibiotic days, tuberculosis patients were put on a fresh-air-and-sunshine regimen. Could the vitamin D so acquired account for the cures this system sometimes produced? Nancy AxfordSacramento, Calif. Researcher John J. Cannell points to TB sanitariums as anecdotal evidence that sunlight fights infections.—J. […]

    By Science News
  3. Planetary Science

    From the January 2, 1937, issue

    The beauty of snow, a very large number, and a robot brain machine.