Credit: ©The Royal Society
    Image number: RS.14554

    Calculating the pressure of water in a pipe

    Date
    4 July 1683
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p54
    Material
    Dimensions
    height (page): 374mm
    width (page): 238mm
    Subject
    Physics
       > Vacuum physics
          > Pneumatics
    Description
    A figure illustrating how to calculate (and reduce to feet and inches) the pressure of water in any pipe, according to Robert Hooke, who reported it to the meeting on 4 July 1683.

    This is copied from RBO/6/071.
    Object history
    At the meeting of the Royal Society on 4 July 1683, ‘Mr. Hooke shewed the rule for calculating the pressure of water in a pipe. He shewed likewise a way to find the true comparative expansion of any metal, when melted’ (Birch 4:213). Both papers were registered without an explicit order.

    The text and the figure (direction rotated) were published in Robert Hooke, Philosophical Experiments and Observations, ed. by W. Derham (London: 1726), pp. 91-95 (figure at p. 92).
    Related fellows
    Robert Hooke (1635 - 1703, British) , Natural philosopher
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