Uncategorized

  1. 19391

    The article about tuberculosis states that Robert Koch in 1882 was the first person to link a particular microbe to a disease. References indicate that Armauer Hansen demonstrated in 1868 that Mycobacterium leprae was associated with the tissues of leprosy patients. He may not have had Koch’s postulates to prove this linkage, but many credit […]

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  2. Math

    Mapping Scientific Frontiers

    Can computer visualization help identify turning points and milestones in scientific discovery?

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  3. Humans

    Letters from the March 13, 2004, issue of Science News

    Dry hole? “Tapping sun’s light and heat to make hydrogen” (SN: 1/17/04, p. 46: Tapping sun’s light and heat to make hydrogen) seems to be delivering good news for the environment: “Clean” hydrogen can be produced from water using solar energy.