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A Repetition of the Michelson-Morley Experiment Using Kennedy's Refinement

Illingworth, K. K. (1927) A Repetition of the Michelson-Morley Experiment Using Kennedy's Refinement. Physical Review, 30 (5). pp. 692-696. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:ILLpr27

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Abstract

The ether drift experiment as performed by Kennedy with a reduced optical system in helium has been repeated with the same apparatus somewhat modified and the same results obtained. The interferometer has been improved by resilvering the mirrors so that 1/1500 of a fringe shift could be detected by an observer with good eyes, and 1/500 by an observer with poorer eyes. Additional readings, which eliminate steady thermal shifts of the fringes, have been made and these show no ether drift to an accuracy of about one kilometer per second.


Item Type:Article
Additional Information:©1927 The American Physical Society Received 15 August 1927
Record Number:CaltechAUTHORS:ILLpr27
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ILLpr27
Alternative URL:http://dx.doi.org/10.1103/PhysRev.30.692
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5885
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:06 Nov 2006
Last Modified:26 Dec 2012 09:15

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