Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-27T17:42:16.444Z Has data issue: false hasContentIssue false
  • English
  • Français

XI.—Studies in Clocks and Time-keeping: No. 1. Theory of the Maintenance of Motion

Published online by Cambridge University Press:  15 September 2014

R. A. Sampson
Get access

Extract

The studies of which the present paper is the first are intended to accumulate observations and discussions on all necessary points connected with exact time-keeping, such as the maintenance of motion, air-resistance, barometric error, escapement error, temperature compensation, and so forth. It may be taken that no clock so far made behaves uniformly so as to keep regular time. The clock is one of the fundamental measuring instruments of astronomy, but astronomical practice has kept in advance of the precision reached by its clocks by determining the clock error in the midst of each set of observations and so dispensing with the need for carrying forward for any length of time a doubtful clock rate. But there are many reasons why we should not be content with this, which amounts to an elimination of the clock. In the first place, it is not always feasible.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 38 , 1919 , pp. 75 - 114
Copyright
Copyright © Royal Society of Edinburgh 1919

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 75 note * Cf. Glauert, , Mon. Not. R. Ast. Soc., lxxv, p. 489 (1915).CrossRefGoogle Scholar

page 77 note * Cf. Ambronn, , Handbuch d. Astronomischen Instrumentenkunde, Bd. i. (1899), p. 200.Google Scholar

page 83 note * A.N., Bd. 91, No. 2182.

page 90 note * Trans. Cambridge Phil. Soc., iii (1827), p, 105.

page 112 note * Cf. Rayleigh, Theory of Sound, vol. i, p. 294.