Einstein's Blackboard at Oxford's Museum of the History of Science
In 1931 Einstein was invited to speak at Oxford to give a series of three lectures on relativity. This blackboard was preserved from the second lecture on 16th May 1931 and is now displayed in the Museum of the History of Science.
From the plaque beneath the blackboard: "The first three lines establish an equation for D, the measure of expansion in the universe. The lower four lines provide numerical values for the expansion, density, radius and age of the universe."
(Originally published: http://www.flickr.com/photos/garrettc/2172850095/)
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Comment by John Graham-Cumming on June 15, 2009 at 11:37am
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Glad to hear that. If you have the time please consider writing a review on Amazon.
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Comment by garrettc on June 15, 2009 at 10:57am
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It was my pleasure. I finally picked up a copy of the book over the weekend and it's fantastic, a really great read.
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Thank you for letting me use this photo in the book.
© 2013 Created by John Graham-Cumming.
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