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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. doi:10.1103/PhysRev.30.692.

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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.

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Additional Information:©1927 The American Physical Society Received 15 August 1927
Issue or Number:5
Record Number:CaltechAUTHORS:ILLpr27
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5885
Deposited By: Archive Administrator
Deposited On:06 Nov 2006
Last Modified:08 Nov 2021 20:29

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