Uncategorized

  1. Humans

    Flight Notes

    Wilbur and Orville Wright made the first powered, sustained, and controlled flight in a heavier-than-air flying machine on Dec. 17, 1903. Now, the Library of Congress has prepared a display of items from its extensive collection of the Wright Brothers’ papers. The online exhibit includes photographs, a timeline, numerous documents, and much more. Go to: […]

    By Science News
  2. Math

    The Bias of Random-Number Generators

    Some popular random-number generators fail even in simulating a coin toss.

    By Ivars Peterson
  3. Health & Medicine

    Checkmate for a Child-Killer?

    If a new generation of vaccines pans out, the days of rotavirus, which kills at least 450,000 infants and children every year by causing severe diarrhea, may be numbered.