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Дата последнего поиска статьи во внешних источниках: 23 июня 2015 г.
Аннотация:This paper discusses some aspects of cosmological expansion as viewed by an observer. It identifies the rate of change of the angular distance $ v_\Theta$ with respect to the observer's clock as a crucial quantity in properly understanding the expansion. Using this quantity and the angular distance, in addition to the traditional approach to visualization, provides a more vivid picture of the cosmological expansion and is key for adequately visualizing it.