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  1. Thinking of Zero

    For anyone deeply interested in logic and the history and philosophy of zero, Hossein Arsham of the University of Baltimore offers an thought-provoking Web-based discussion of such topics as the meaning of division by zero, the role of zero in limits and divergent series, and the concept of zero as a void. Go to: http://ubmail.ubalt.edu/~harsham/zero/ZERO.HTM

    By Science News

  2. From the June 20, 1931, issue

    HUGE ELETROMAGNET INSTALLED AT LEIDEN A huge electromagnet weighing 14 tons, about two-thirds as much as a street car, just erected at Leiden, Holland, by the Siemens Halske Company of Berlin, will enable scientists to wrench atoms apart as never before. This marks the realization of a dream of the late Dr.