Credit: ©The Royal Society
    Image number: RS.15000

    Reflecting telescope

    Date
    30 March 1672
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    LBC
    Manuscript page number
    vol5 p214a
    Material
    Dimensions
    height (page): 153mm
    width (page): 175mm
    Subject
    Physics
       > Optics
    Content object
    Description
    Figures explaining improvements to a reflecting telescope, copied from LBO/5/195a. These are from Isaac Newton's letter to Henry Oldenburg dated 30 March 1672, in reply to some objections raised by Adrian Auzout. Newton's letter was read to the meeting of the Royal Society on 4 April 1672.

    These figures are copied from LBO/5/195a.
    Object history
    At the meeting of the Royal Society on 4 April 1672, ‘Mr. Oldenburg communicated a letter to him from Mr. Newton, dated at Cambridge 30th March, 1672, containing his answer to the difficulties objected by Mons. Auzout against his reflecting telescope: as also the queries of Mons. Denys concerning it; together with Mr. Newton’s proposal of a way of using, instead of a little oval metal in that telescope, a crystal figured like a triangular prism. Mr. Hooke was ordered to make such a crystalline prism for the design mentioned in Mr. Newton’s letter, and to try the same’ (Birch 3:41).
    Related fellows
    Isaac Newton (1642 - 1727, British) , Natural philosopher
    Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
    Associated place
    <The World>
       > Europe
          > United Kingdom
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