Credit: ©The Royal Society
    Image number: RS.15074

    Perpetual motion machine

    Date
    ca.1683-1684
    After
    Object type
    Archive reference number
    LBC
    Manuscript page number
    vol9 p457
    Material
    Dimensions
    height (page): 304mm
    width (page): 180mm
    Subject
    Content object
    Description
    Copy of a draft by John Speed (now Ms Ashmole 1813, Bodleian Library, Oxford), originally drawn up and sent to Henry Briggs (1561-1630), professor of geometry at Gresham College on 3 June 1604 of a device of 'continual motion' by a Dutchman 'dwelling at Ipswich'. The Dutchman was the inventor Cornelis Drebbel (1572-1633), who dedicated such a machine to James I which was exhibited at the Royal Palace at Eltham.

    This drawing was among the papers of John Speed's son, Dr Samuel Speed (d. 1681) of Christ Church, Oxford. It was from William Musgrave, Oxford and was shown at the meeting of the Royal Society on 14 January, 1685.

    This was copied from LBO/9/342.
    Object history
    At the meeting of the Royal Society on 14 January 1685, ‘In this letter of Mr. Musgrave was inclosed a paper, found in a study of Dr. Speed [according to Birch: Samuel Speed, installed Canon of Christ Church in May 1674, and vicar of Godalmin in Surrey, where he died January 22d, 1681], late of Christ-Church, Oxford, and said to have been written by his father to Mr. Briggs [Henry Briggs, professor of geometry at Gresham College, according to Birch]. It seemed to be a description of one of Cornelius Drebbel’s inventions’ (Birch 4:356). The text is printed at Birch 4:357.
    Related fellows
    William Musgrave (1655 - 1721, British) , Physician
    Francis Aston (1644 - 1715, British) , Natural philosopher
    Associated place
    <The World>
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          > Netherlands
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