Round an expanding world: A simple model to illustrate the kinematical effects of the cosmological expansion

Details Round an expanding world: A simple model to illustrate the kinematical effects of the cosmological expansion Round an expanding world: A simple model to illustrate the kinematical effects of the cosmological expansion

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007amjph..75..331c&link_type=abstract

American Journal of Physics, Volume 75, Issue 4, pp. 331-335 (2007).

Physics

1

General Relativity And Gravitation

Scientific paper

We use a rubber balloon model to give a simple explanation of the motion
of photons and galaxies in an expanding and collapsing universe. In
particular, we study the Friedmann-Lemaitre-Robertson-Walker closed
universe. The behavior of the peculiar velocity of galaxies in an
expanding universe is also studied with the help of this model.

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