Uncategorized

  1. Computing

    Digital Fingerprints

    New methods to identify Internet users by their behavior can uncover criminals online, but these techniques may also track millions of innocent users.

    By Julie Rehmeyer
  2. 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
  3. 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.