Fayl:Niels Bohr Albert Einstein by Ehrenfest.jpg

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English: Niels Bohr and Albert Einstein. The picture was taken at Ehrenfest's home in Leiden, the occasion was most likely the 50th anniversary of Hendrik Lorentz' doctorate (December 11, 1925).
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Paul Ehrenfest

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(Faylın təkrar istifadəsi) 		This photo is PD in the Netherlands, its country of origin. Publication information is needed to determine if it is also PD in the U.S. If this photo was unpublished (or not published until 2003 or later), then it is considered PD in the U.S.
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təsvir edir

yaranma tarixi

11 dekabr 1925Qriqori təqvimi

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indiki 1.467 × 2.123 (1,64 MB) Craigboy partially cleaned
1.467 × 2.123 (1,64 MB) Fastfission~commonswiki cropped version of same
1.473 × 2.421 (590 KB) Stahlkocher Niels Bohr and Albert Einstein Foto by Ehrenfest {{GFDL}}

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