**Friedmann Universe Theory**- Info from Multiple Engines

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www.reference.com/science/**friedmann**-**universe**-**theory**-a4fe75938fe1f3d

What Is the Friedmann Universe Theory? In 1922, Russian mathematician Alexander Friedmann answered Albert Einstein's equations of general relativity. Friedmann's answers led to the theory that the universe is dynamic, meaning that it changes in size over time. Friedmann introduced the term "expanding universe" into the scientific lexicon.

**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

healthresearchfunding.org/**friedmann-universe-theory-explained**

The original universe theory by Friedmann suggests a closed universe model where entropy will eventually cause it to die. He also suggested that the universe could be open, expanding infinitely, or that it could be flat and expansion would eventually approach a rate of zero.

www.physicsofthe**universe**.com/scientists_**friedmann**.html

Alexander Friedmann was a Russian cosmologist and mathematician, who helped develop models that explained the development of the universe. 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.

www.answers.com/Q/What_**friedmann**_**universe**_**theory**

Friedmann Theory - Alexander Alexandrovich Friedmann is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed from Albert Einstein's ...

**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.universetoday.com**/54756/what-is-the-**big-bang**-th

The Big Bang Theory explains how the Universe has evolved over last 13.8 billion years, starting from a singularity to its current size. ... Friedmann’s work showed that the universe was likely ...

**www.youtube.com**/watch?v=FlT60ttXLzw

Why the Universe Needs Dark Energy ... PBS Space Time 636,637 views. 12:41. V24 Friedmann Equation Lesson 2 Geometry and dynamics of our universe ANU ... Einstein's Theory of Relativity ...

encyclopedia2.thefreedictionary.com/**Friedmann+universe**

Given these definitions, we may ask if there is a possible reconstruction of Newton-Smith's argument that is a viable argument for the claim that there is some Universe U' containing both the Friedmann universe U and a spatio-temporal structure earlier than the singularity that is occupied by physical processes that cause the singularity.

**en.wikipedia.org**/wiki/**Alexander_Friedmann**

Alexander Alexandrovich Friedmann (also spelled Friedman or Fridman / ˈ f r iː d m ə n /; Russian: Алекса́ндр Алекса́ндрович Фри́дман) (June 16 [O.S. 4], 1888 – September 16, 1925) was a Russian and Soviet physicist and mathematician.He is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed now ...