Orest Danilovich Khvolson

Autor:

NieznanyUnknown author

Credit:

http://rybkin.h16.ru/uchastniki.htm#hvols

Krótki link:

https://plwiki.pl/b/7d37d

źródło:

Wikimedia Commons

Wymiary:

200 x 227 Pixel (33060 Bytes)

Opis:

was a Russian physicist and honorary member of the Soviet Academy of Sciences (1920). He is most noted for being one of the first to study the gravitational lens effect.[1]

Licencja:

Public domain