From Star to Clock: Timekeeping at Ladd Observatory

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Year:: 2016
Contributor:: Umbricht, Michael L. (Creator)
Subject:: archival research; Brown University; public humanities; clock; time; astronomy; history of science; history of technology; telescope
DOI: https://doi.org/10.26300/xzvw-7523

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Description

Abstract:: Lecture slides about the history of timekeeping at Ladd Observatory. Presented by Michael Umbricht at the Ladd Observatory 125th anniversary on October 21, 2016. The presentation describes the calibration of precision mechanical pendulum clocks to synchronize the timepieces with telescope observations of stars. The time from the clocks at the observatory was then sent by telegraph wires to the City of Providence Fire Department and the Rhode Island Electric Protective Company. Accurate time was then distributed to local businesses.

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Use and Reproduction: Copyright by the author. This work is licensed under a Creative Commons Attribution 4.0 International License
Rights: Copyright Not Evaluated
Restrictions on Use: Collection is open for research.

Citation

Umbricht, Michael L., "From Star to Clock: Timekeeping at Ladd Observatory" (2016). Archives of the Ladd Observatory. Brown Digital Repository. Brown University Library. https://doi.org/10.26300/xzvw-7523

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Collection:

Archives of the Ladd Observatory

Materials from the archives of Ladd Observatory, including eclipse expedition scrapbooks, slides, and associated materials from Charles H. Smiley.
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