Abstract
AT a time when the struggle between rival theories of the phenomenon of the recession of the nebulae is still in progress, Prof. Haas's excellent summary of the whole position will be welcome to both experts and non-experts. Prof. Haas has divided his book into two parts. In the more popular first portion, he deals with the observational material regarding the recession phenomenon and describes the methods of determining the distances, distribution in space, and red-shifts of the spectral lines of the nebulae. He shows how puzzling is the short time-scale permitted by the rapid rate of expansion and refers to the problem of the cosmic rays. Prof. Haas has succeeded in presenting the results of the observations objectively whilst evidently favouring the relativistic theory for accounting for them.
Die kosmologischen Probleme der Physik.
Von Prof. Dr. Arthur Haas. Pp. vii + 124. (Leipzig: Akademische Verlagsgesellschaft m.b.H., 1934.) 3.80 gold marks.
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Die kosmologischen Probleme der Physik . Nature 134, 125 (1934). https://doi.org/10.1038/134125c0
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DOI: https://doi.org/10.1038/134125c0
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