This image is not available for purchase in your country.

Portrait of Russian cosmologist Alexandr Friedmann

Portrait of Russian cosmologist Alexandr Friedmann

H406/0154

Rights Managed

26.0 MB (3.2 MB compressed)

2550 x 3564 pixels

21.6 x 30.2 cm ⏐ 8.5 x 11.9 in (300dpi)

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Alexandr Friedmann. Portrait of the Russian cosmo- logist and mathematician, Alexandr Alexandrovich Friedmann (1888-1925). Friedmann studied at St Petersburg, Russia, where he became a lecturer. From 1920 he was at the Academy of Sciences, also in St Petersburg, where he worked on Einstein's general theory of relativity. His various solutions to the equations of this theory showed that not only is the universe the same everywhere at a given time, but its size and density vary as a function of time. In 1917 he proposed that the universe was expanding, 12 years before Hubble found evidence for it. The expansion was later explained in the Big Bang theory.

Release details

Model release not available. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}