# Einstein’s conversion from his static to an expanding universe

@article{Nussbaumer2013EinsteinsCF, title={Einstein’s conversion from his static to an expanding universe}, author={Harry Nussbaumer}, journal={The European Physical Journal H}, year={2013}, volume={39}, pages={37-62} }

Abstract
In 1917 Einstein initiated modern cosmology by postulating, based on general relativity,
a homogenous, static, spatially curved universe. To counteract gravitational contraction
he introduced the cosmological constant. In 1922 Alexander Friedman showed that Albert
Einstein’s fundamental equations also allow dynamical worlds, and in 1927 Georges
Lemaître, backed by observational evidence, concluded that our universe was expanding.
Einstein impetuously rejected Friedman’s as well as Lema…

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In 1917 Einstein initiated modern cosmology by postulating, based on general relativity, a homogenous, static, spatially curved universe. To counteract gravitational contraction he introduced the…

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