Letters from D. Robertson on various clock problems, with blueprint, 1929-12-20 - 1931-09-23
Scope and Contents
Includes:
Blueprint of a graph recording ’Performance of clock at Bristol University’,1929 April-May and 1929 November-December.
Letter from D. Robertson on trouble with the University clock and other clock/pendulum matters.
Page of calculations for a mathematical problem.
Letter from D. Robertson on the lack of poise in a balance wheel.
Letter from D. Robertson on E.C. Atkinson's headway in the study of the theory of watches.
Letter on ‘the barometric effect on different patterns of watch’.
Letter from D. Robertson on clocks and pendulums with reference to G.B. Airy.
Postcard from D. Robertson on ‘Oscillation Period of an Unpoised Balance Wheel’.
Letter from D. Robertson mostly on the subject of station clocks.
Letter from D. Robertson on clock calculation equations, the virtue of long over short pendulums and many more scientific questions.
Letter on short and long pendulum comparison and clock problems.
Letter on clock problems and long pendulums.
Letter on calculations, clocks and suspension springs.
Dates
- Creation: 1929-12-20 - 1931-09-23
Creator
- From the Management Group: Royal Greenwich Observatory (Organization)
Conditions Governing Access
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Extent
1 folder(s) : paper
Former reference
RGO 68/119
Repository Details
Part of the Cambridge University Library Repository
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Cambridge CB3 9DR United Kingdom
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