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    • Free Field Calibration of Microphones - Nature

      Nature· 21 hours ago

      THE determination of the ‘field calibration‘of a microphone, that is, the sensitivity under free space conditions, has been rendered difficult in the past by the presence of air currents comparable ...

    • The Ear a Barometer - Nature

      Nature· 19 hours ago

      WITH regard to the letter of Mr. C. V. Boys in NATURE of February 7 (p. 333), I should like to make a remark or two on the matter, in which I have had practical experience. The Leighton tunnel ...

    • Inactivation of DDT by Soils - Nature

      Nature· 20 hours ago

      WE have read with interest the recent communication in Nature from H. Maes1. His report of the work of I. Vincke, who has observed a rapid loss of insecticidal power of DDT on the walls of certain ...

    • Science News a Century Ago - Nature

      Nature· 19 hours ago

      From these it appears that a liquid column being heated at the upper part, the heat is propagated according to the same laws as those belonging to solid bodies; that the temperature decreases ...

    • Protoplasmic Continuity in Plants - Nature

      Nature· 23 hours ago

      IN the very interesting article on “The Continuity of the Protoplasm through the walls of Vegetable Cells,” which appeared in NATURE of June 19 (p. 182), reference is made to the doubt which ...