03098nam 22006855 450 991025407800332120200702152145.03-319-24379-910.1007/978-3-319-24379-5(CKB)3710000000596513(EBL)4391603(SSID)ssj0001654183(PQKBManifestationID)16433429(PQKBTitleCode)TC0001654183(PQKBWorkID)14982359(PQKB)11102851(DE-He213)978-3-319-24379-5(MiAaPQ)EBC4391603(PPN)192222406(EXLCZ)99371000000059651320160205d2016 u| 0engur|n|---|||||txtccrVarying Gravity Dirac’s Legacy in Cosmology and Geophysics /by Helge Kragh1st ed. 2016.Cham :Springer International Publishing :Imprint: Birkhäuser,2016.1 online resource (197 p.)Science Networks. Historical Studies,1421-6329 ;54Description based upon print version of record.3-319-24377-2 Includes bibliographical references and index.Preface -- 1.Introductory Issues -- 2.Varying Gravity -- 3.The Expanding Earth -- 4.After Plate Tectonics -- Bibliography -- Index.The main focus of this book is on the interconnection of two unorthodox scientific ideas, the varying-gravity hypothesis and the expanding-earth hypothesis. As such, it provides a fascinating insight into a nearly forgotten chapter in both the history of cosmology and the history of the earth sciences. The hypothesis that the force of gravity decreases over cosmic time was first proposed by Paul Dirac in 1937. In this book the author examines in detail the historical development of Dirac’s hypothesis and its consequences for the structure and history of the earth, the most important of which was that the earth must have been smaller in the past.Science Networks. Historical Studies,1421-6329 ;54MathematicsHistoryCosmologyGeophysicsHistory of Mathematical Scienceshttps://scigraph.springernature.com/ontologies/product-market-codes/M23009Cosmologyhttps://scigraph.springernature.com/ontologies/product-market-codes/P22049Geophysics and Environmental Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P32000Mathematics.History.Cosmology.Geophysics.History of Mathematical Sciences.Cosmology.Geophysics and Environmental Physics.523.1Kragh Helgeauthttp://id.loc.gov/vocabulary/relators/aut53342MiAaPQMiAaPQMiAaPQBOOK9910254078003321Varying Gravity2283934UNINA