dava-sobel-book.jpg

dava-sobel-book.jpg

An old photograph of Williamina Fleming posing in 1891 in the plate stacks is held up next to a book with a print of the same image.
Bouquin, left, and Smith Zrull, right, hold up an original image of Williamina Fleming posing in the plate stacks in a 1891 photo that was the first photo used in bestselling author Dava Sobell's 2016 book, "The Glass Universe." Smith Zrull says they know the 1891 image is posed because a window is closed and the tool Fleming is using to study a plate only works with window light. 
Credit: Alex Newman/PRI