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the claim

Einstein knew about the Michelson-Morley experiment

the verdict
SUPPORTED
the evidence backs this
Recorded sources
6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Einstein knew about the Michelson-Morley experiment?

Yes. Historical scholarship and Einstein's own writings confirm that he undoubtedly knew about the Michelson-Morley experiment, even if historians debate the exact degree of direct influence it had on his initial formulation of special relativity.

Verdict: SUPPORTED · 6 sources for, 0 against · Last checked

How claims like this are judged

Judged against reference works: claims of this kind are settled by the historical reference record, not journal abstracts.

Evidence for · 6
Wikipedia: Relativity priority dispute
Reference article covering this claim directly
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Wikipedia: Relativity priority dispute. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Relativity_priority_dispute

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More for · 5
Wiley Publishing: Einstein for dummies
2005
Discusses Einstein and the Michelson-Morley experiment, though context is general.
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I, C. C. (2005). Wiley Publishing: Einstein for dummies. Wiley Publishing. https://archive.org/details/einsteinfordummi0000call

Oxford University Press: "Subtle is the Lord-- " : the science and the life of Albert Einstein
1982
Discusses what Einstein knew regarding the Michelson-Morley experiment.
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1918-, P. A. (1982). Oxford University Press: "Subtle is the Lord-- " : the science and the life of Albert Einstein. Oxford University Press. https://archive.org/details/subtleislordscie0000pais

Watts: Albert Einstein : the founder of modern physics
2003
Connects Einstein's work to what the Michelson-Morley experiment showed.
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Chris, O. (2003). Watts: Albert Einstein : the founder of modern physics. Watts. https://archive.org/details/alberteinsteinfo0000oxla

Wikisource: The Meaning of Relativity/Lecture 2
Einstein himself states in his lectures that he assumes the Michelson-Morley experiments are known.
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Wikisource: The Meaning of Relativity/Lecture 2. (n.d.). Wikisource. https://en.wikisource.org/wiki/The_Meaning_of_Relativity/Lecture_2

OpenAIRE: How Einstein discovered the Special Theory of Relativity
2006
Explicitly states that while it had no direct influence on his discovery, Einstein undoubtedly knew about it.
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OpenAIRE: How Einstein discovered the Special Theory of Relativity. (2006). OpenAIRE. https://doi.org/10.1007/bf02837273

Receipt History
first checked06 Aug 2026
judged → SUPPORTED · 7506 Aug 2026
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