Saturday, 24 March 2012 03:53

Alexander Friedman: Men of Ideas

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Alexander Friedman (1888-1925) was a Russian, Jewish, mathematician and astronomer. His main contribution to science is positing, in 1922, the hypothesis that the universe is expanding.

Edwin Hubble’s 1929 observations proved this hypothesis to be correct.

Since Albert Einstein’s special relativity there had been a debate as to whether the universe is static or expanding. Lamaitre’s Big Bang hypothesis of the origin of the Universe and Edwin Hubble’s telescopic observations eventually demonstrated that the universe began at one point and is expanding outwards.

The detection of cosmic microwave background radiation also lead to the abandonment of Einstein’s steady state hypothesis of the universe.

Freidman and others contributed to the elucidation of Einstein’s homogeneous and isotropic universe (that the universe is the same everywhere in the sense that the same physical principles apply everywhere in it). The set of equations and proof of the homogenous universe is called the Freidman-Lamaitre-Robertson-Walker metric or FLRW metric.

REFERENCE

Alexander Friedman. Uber die Moglichkeit einer Welt mit konstaner negativer Krummung des Raumes, Z Physics 21. (1924)

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Ozodi Osuji Ph.D

Ozodi Thomas Osuji is from Imo State, Nigeria. He obtained his PhD from UCLA. He taught at a couple of Universities and decided to go back to school and study psychology. Thereafter, he worked in the mental health field and was the Executive Director of two mental health agencies. He subsequently left the mental health environment with the goal of being less influenced by others perspectives, so as to be able to think for himself and synthesize Western, Asian and African perspectives on phenomena. Dr Osuji’s goal is to provide us with a unique perspective, one that is not strictly Western or African but a synthesis of both. Dr Osuji teaches, writes and consults on leadership, management, politics, psychology and religions. Dr Osuji is married and has three children; he lives at Anchorage, Alaska, USA.

He can be reached at: ozodiosuji@gmail.com (907) 310-8176