Credit: ©The Royal Society
    Image number: RS.14972

    Diagram of optical considerations

    Date
    20 August 1670
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    LBC
    Manuscript page number
    vol4 p65
    Material
    Dimensions
    height (page): 301mm
    width (page): 175mm
    Subject
    Description
    Diagram for the solution to the problem proposed by Renatus Franciscus Slusius: in the semicricle AGB, whose centre is C, to inflect a straight line GF from the given point G so that the two perpendiculars, FH on AB, and CE on FG, have a given ratio to each other (as translated in Correspondence of Henry Oldenburg, vol. 7, p. 118).

    This diagram is copied from LBO/4/049. The diagram in the original letter is at EL/S1/65/002.
    Related fellows
    Renatus Franciscus Slusius (1622 - 1685, Belgian) , Mathematician
    Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
    Associated place
    <The World>
       > Europe
          > Belgium
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