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  1. From the June 27, 1931, issue

    LARGER MERCURY VAPOR ELECTRIC GENERATING UNIT BEING BUILT A new and larger turbine electric generator that will use mercury vapor instead of steam and will consume less fuel than corresponding modern steam plants is being constructed in the General Electric Company plant at Schenectady, N.Y. This 20,000-kilowatt turbine will have twice the output of the […]

    By Science News
  2. Chemistry

    Perfecting Porosity

    Researchers are designing novel porous materials that could clean up toxins, store gases, or catalyze difficult chemical reactions.

    By Jessica Gorman
  3. Astronomy

    An Illuminating Journey

    Astronomers are beginning to use the cosmic microwave background, the remnant glow from the Big Bang, in a dramatically different way: Instead of treating it as a snapshot of the early universe, researchers are proposing to employ the radiation as a flashlight that probes the evolution of structure in the universe over its entire 13-billion-year history.