detriti di Rangle, cose, non so.
October 13th, 2010
George A. Van Biesbroeck (1880-1974), astronomer at Yerkes Observatory observing Mars when it approached close to the earth in 1926, and using the 40 inch refracting telescope, the largest of its kind in the world (Acc. 90-105 - Science Service, Records, 1920s-1970s, Smithsonian Institution Archives)

George A. Van Biesbroeck (1880-1974), astronomer at Yerkes Observatory observing Mars when it approached close to the earth in 1926, and using the 40 inch refracting telescope, the largest of its kind in the world (Acc. 90-105 - Science Service, Records, 1920s-1970s, Smithsonian Institution Archives)

Permalink  | 2 notes
« Previous post |  Next post »
Short URL: http://tmblr.co/ZbwuKy1Dr0Cd

Notes:

    1. ulaulaman reblogged this from rangle
    2. rangle posted this