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    • Calendar of Nature Topics - Nature

      Nature· 24 hours ago

      Most Northerly Position of the Doldrums The circulation of the air over the tropical and sub-tropical parts of the Atlantic and Pacific Oceans comprises the north-east and south-east trade winds ...

    • Calendar of Patent Records - Nature

      Nature· 22 hours ago

      December 1, 1671.—On Dec. 1, 1671, Prince Rupert was granted a patent for his new invention of “converting into steel all manner of edged tools, files, etc., forged and formed in soft iron, ...

    • Calendar of Nature Topics - Nature

      Nature· 24 hours ago

      Greatest Frequency of Typhoons in the China Seas The typhoons of the China Seas are revolving storms of great violence. The majority originate among the island groups of the western Pacific, ...

    • Calendar of Patent Records - Nature

      Nature· 1 day ago

      January 1, 1905.—Previous to 1905 no question as to the novelty of an invention for which a patent was being sought was raised by the British patent office, but under the provisions of the Patents ...

    • Calendar of Patent Records - Nature

      Nature· 1 day ago

      October 26, 1724.—A patent was granted to John Brent on Oct. 26, 1724, for “a wind engine or machine which would be useful in occasioning motion to all sorts of mill-work and for divers other ...

    • Calendar of Patent Records - Nature

      Nature· 1 day ago

      October 6, 1825.—An early example of ‘caterpillar’ traction for road vehicles, consisting essentially in the employment of an endless chain passing round the wheels on each side of the wagon ...

    • Calendar of Discovery and Invention - Nature

      Nature· 24 hours ago

      October 30, 1786.—So early as 1780, Galvani made experiments on muscular contractions due to electric charges. Pursuing his studies in 1786 with his nephew Camillo Galvani, in September of that ...