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www.goodreads.com/book/show/705558.Universe

Known edition after edition for its state-of-the-science coverage, Universe breaks new ground in its Eighth Edition with added pedagogical support and pioneering media and supplements. It places the basics of astronomy and the process of science within the grasp of introductory students.

en.wikipedia.org/wiki/Friedmann_equations

The Friedmann equations start with the simplifying assumption that the universe is spatially homogeneous and isotropic, i.e. the cosmological principle; empirically, this is justified on scales larger than ~100 Mpc. The cosmological principle implies that the metric of the universe must be of the form

www.britannica.com/science/Friedmann-universe

Friedmann universe: Friedmann universe, model universe developed in 1922 by the Russian meteorologist and mathematician Aleksandr Friedmann (1888–1925). He believed that Albert Einstein’s general theory of relativity required a theory of the universe in motion, as opposed to the static universe that scientists until

www.vitalsource.com/products/universe-roger-freedman-v9781319116460

Universe 10th Edition by Roger Freedman and Publisher W.H. Freeman & Company. Save up to 80% by choosing the eTextbook option for ISBN: 9781319116460, 1319116469.

www.coursehero.com/file/24652099/Universepdf

View Universe.pdf from ASTRO 1 at University of California, Santa Barbara. TENTH EDITION UNIVERSE TENTH EDITION UNIVERSE Roger A. Freedman Robert M. Geller University of California, Santa

www.abebooks.com/9781464124921/Universe-Roger-Freedman-Robert-Geller...

About the Author: . Roger A. Freedman is a Lecturer in Physics at the University of California, Santa Barbara, USA. At UCSB, Dr. Freedman has taught in both the Department of Physics and the College of Creative Studies, a branch of the university intended for highly gifted and motivated undergraduates.

www.bookdepository.com/Universe-Roger-Freedman/9781464124921

Roger A. Freedman is a Lecturer in Physics at the University of California, Santa Barbara, USA. At UCSB, Dr. Freedman has taught in both the Department of Physics and the College of Creative Studies, a branch of the university intended for highly gifted and motivated undergraduates.

www.physicsoftheuniverse.com/scientists_friedmann.html

In particular, his solutions to Einstein’s field equations provided early evidence of an expanding universe, and the theoretical underpinnings for both the Big Bang and steady state models of the universe. Alexander (or Aleksandr) Alexandrovich Friedmann (or Friedman) was born on 16 June 1888 in Saint Petersburg, Russia.

en.wikipedia.org/wiki/Alexander_Friedmann

Alexander Friedmann was born to the composer and ballet dancer Alexander Friedmann (who was a son of a baptized Jewish cantonist) and the pianist Ludmila Ignatievna Voyachek. Friedmann was baptized into the Russian Orthodox Church as an infant, and lived much of his life in Saint Petersburg.

www.forbes.com/.../2018/04/17/the-most-important-equation-in-the-universe

An illustration of our cosmic history, from the Big Bang until the present, within the context of the expanding Universe. The first Friedmann equation describes all of these epochs, from inflation ...