Uncategorized

  1. Astronomy

    Astronomers get radio protection

    Astronomers studying the universe at millimeter-wave energies-the high-frequency portion of the radio spectrum-were given an official guarantee last month that commercial satellites and other communication devices won't interfere with the scientists' observations.

    By Ron Cowen
  2. Astronomy

    The smashup that rejuvenates

    For some elderly stars, the fountain of youth may be only a collision away.

    By Ron Cowen
  3. Math

    Contra Dances, Matrices, and Groups

    Though unknown to many people, contra dancing is practiced with great devotion and abandon throughout the United States by fans of this lively dance form. What’s striking is that a remarkably high percentage of contra dancing’s practitioners are highly educated, often involved in mathematics, computers, or engineering.