Credit: ©The Royal Society
    Image number: RS.15658

    Diagram

    Date
    December 1662
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p2
    Material
    Dimensions
    height (page): 313mm
    width (page): 210mm
    Subject
    Physics
       > Mechanics
    Description
    This diagram was originally used by Thomas Hobbes for his proof of squaring the circle. Christian Huygens's criticisms of these proofs were read at the meeting of the Royal Society at the meeting on 31 December 1662.

    There are copies of this image at LBO/1/027a and LBC/1/087.
    Object history
    At the meeting of the Royal Society on 31 December 1662, ‘Monsieur Huygens’s letter to Sir Robert Moray was read, containing his answer to Mr Hobbes’s defence of certain geometrical problems about the duplication of the cube, etc. And it was ordered to be sent to Mr. Hobbes by the means of the stationer appointed by himself to receive the judgements of foreign mathematicians concerning that matter’ (Birch 1:167).
    Related fellows
    Christiaan Huygens (1629 - 2006, Dutch) , Natural philosopher
    Robert Moray (1608 - 1673, British) , Natural philosopher
    Associated place
    <The World>
       > Europe
          > Netherlands
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