Credit: ©The Royal Society
    Image number: RS.15837

    Some rules on gunnery

    Date
    8 April 1686
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p3
    Material
    Dimensions
    height (page): 342mm
    width (page): 229mm
    Subject
    Description
    Diagram in William Molyneux's letter to Edmund Halley dated 8 April 1686, discussing Halley's construction to illustrate the latter's rule of determining angles of shooting with a mortar piece. Molyneux notifies Halley that George Tollet had devised a rule for calculating the angles on seeing Halley's diagram. The letter was read to the Royal Society on 21 April 1686.

    This figure is copied at LBO/10/296 and LBC/10/379. Tollet's discussion of this problem may be found in Cl.P/1/20 and elsewhere in the Royal Society Archives.
    Object history
    At the meeting of the Royal Society on 21 April 1686, ‘A letter from Mr. William Molyneux to Mr. Halley, dated at Dublin, April 8, 1686, was read’ (Birch 4:475). The full minutes are printed in Birch 4:475-79.
    Related fellows
    William Molyneux (1656 - 1698, British) , Science writer
    Edmond Halley (1656 - 1742, British) , Astronomer
    Associated place
    <The World>
       > Europe
          > Ireland
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