![](http://www.alamy.com/thumbs/6/525B9018-BE60-490C-A9A3-510D4F978AD0/J46J84.jpg)
Niels Bohr Albert Einstein by Ehrenfest
Size: 1314px × 1902px
Photo credit: © The History Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, art, book, bygone, copy, cover, drawing, editorial, historic, history, illustration, line, map, news, painting, photo, photograph, photography, space, stock, textbook, vintage