New evidence that Einstein knew of MM (Michelson-Morley) experiment before 1905 has come forward.
Article at:
http://www.newsweek.com/id/204892
Article notes - that Einstein made contradictory statements as to whether he knew about MM experiment before writing his SR paper.
The revision is that he did know about MM experiment, so he was working from what other physicists knew about light speed invariance; and it was his genius to use this to make SR; rather than existing belief that Einstein postulated light speed invariance through insight.
What Did Einstein Know, And When Did He Know It?
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Jul 1, 2009