Credit: ©The Royal Society
    Image number: RS.14685

    Diagram for adjusting a quadrant

    Date
    11 May 1668
    Object type
    Archive reference number
    Manuscript page number
    p207
    Material
    Dimensions
    height (page): 313mm
    width (page): 195mm
    Subject
    Content object
    Description
    This is a copy of a letter, dated 11 May 1668 to Johannes Hevelius, in which Henry Oldenburg communicates Robert Hooke's comments about telescopic sights. The diagram illustrates a method of adjusting a quadrant.

    Copied from EL/O1/66/003. Copied in LBC/2/246.
    Related fellows
    Johannes Hevelius (1611 - 1687, German/Polish) , Astronomer
    Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
    Associated place
    <The World>
       > Europe
          > United Kingdom
    Powered by CollectionsIndex+/CollectionsOnline