Uncategorized

  1. 19305

    This article is somewhat misleading. We physicians long ago learned that blocking the enzymatic process (with Antibuse) helps alcoholics. The news is that increases in acetaldehyde in saliva have “possible local carcinogenic action.” Malcolm A. Sowers Castro Valley, Calif

    By Science News
  2. 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. Matrix representing initial configuration of two couples in […]

    By Ivars Peterson
  3. Tech

    Watching the Big Wheelers: In sea of cars, trucks reveal traffic flow

    A new way to sense traffic jams more quickly tracks the motion of trucks within the overall traffic flow.