Niels Bohr Albert Einstein4 by Ehrenfest cr

Forfatter/Opretter:

en:Paul Ehrenfest

Kredit:

https://www.nature.com/articles/456706a (and other sites as well)

Shortlink:

https://www.dkwiki.dk/b/4f499

kilde:

Wikimedia Commons

størrelse:

1912 x 1548 Pixel (1911803 Bytes)

beskrivelse:

en:Niels Bohr and en:Albert Einstein. Foto by Paul Ehrenfest (1880-1933).

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)

Licens:

Public domain