Articles | Volume 6, issue 1
Hist. Geo Space. Sci., 6, 45–55, 2015
https://doi.org/10.5194/hgss-6-45-2015
Hist. Geo Space. Sci., 6, 45–55, 2015
https://doi.org/10.5194/hgss-6-45-2015

Review article 05 May 2015

Review article | 05 May 2015

Expanding Earth and declining gravity: a chapter in the recent history of geophysics

H. Kragh

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Short summary
This paper discusses the hypothesis of the expanding Earth in the period ca. 1950-1975 and how it interacted with Paul Dirac’s cosmological hypothesis of a decreasing gravitational constant. It pays particular attention to the models in which the expansion of the Earth was thought to be caused by a varying gravitational constant. These models, primarily due to Pascual Jordan, László Egyed and Robert Dicke, were for a decade or so considered interesting alternatives to continental drift.