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  1. Chemistry

    Making silicon naturally: Chemists glimpse organic substance in plankton

    For the first time, researchers have found a compound composed of both carbon and silicon within a living organism.

    By Jessica Gorman
  2. Health & Medicine

    Cancer clue: RNA-destroying enzyme may thwart prostate-tumor growth

    Scientists have found a mutated gene that predisposes men of some families to prostate cancer.

    By John Travis

  3. From the January 23, 1932, issue

    FLOODLIGHTS ILLUMINATE LONDON’S TOWER BRIDGE Light from a new age is cast upon the pointed heights of London’s Tower Bridge by floodlights turned on the structure during recent engineering and scientific celebrations in England. The Tower Bridge is just one of the many structures illuminated.