The Great Shadow

Total Eclipse. The approaching total eclipse of the sun (TIME, June 11) on Monday, Sept. 10—easily the most important astronomical event of the year—continues to arouse the most intense interest in scientific circles and unprecedented preparations are under way for its reception and entertainment during the 3 minutes, 36 seconds it will be the guest of the Western Hemisphere. This period of totality is about the average for all total eclipses. The greatest possible duration of a total eclipse is 7 minutes, 58 seconds, and this occurs...

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