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Book, 2019
Current format, Book, 2019, , Available .
Book, 2019
Current format, Book, 2019, , Available . Offered in 0 more formats
"In 1916, a nearly unknown German-born theoretical physicist named Albert Einstein had developed his theory of relativity, but hadn't yet been able to prove it. The only way to do that was through the clear view and measurement of a solar eclipse. In May of 1919, one of the longest total solar eclipses of the 20th century was visible for almost seven minutes in the Southern Hemisphere"--
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