{"product_id":"the-expanding-universe-astronomys-great-debate-1900-1931","title":"The Expanding Universe: Astronomy's Great Debate 1900-1931","description":"\u003cp\u003eOur review of The Expanding Universe: Astronomy's 'Great Debate', 1900-1931 explains why this reprinted historical study is a valuable read for students and enthusiasts of early 20th century astronomy. The book traces three pivotal shifts-the tenfold change in the perceived size of the star system, the acceptance of other star systems beyond the Milky Way, and the observational discovery of cosmic expansion-and places those shifts against the theories and ideas current at the time. For readers seeking a clear, archival-based account of how professional opinion changed, this volume is a focused, documentary-rich review resource.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical scope:\u003c\/strong\u003e Covers the critical period 1900 to 1931, offering a concentrated timeline of the major conceptual shifts in astronomy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchive material:\u003c\/strong\u003e Uses archival sources to illustrate contemporary debates and the evolution of professional opinion, helping readers see how conclusions were reached.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree major shifts explained:\u003c\/strong\u003e Clearly presents the increase in the estimated size of the star system, recognition of external galaxies, and evidence for cosmic expansion as interconnected developments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContextual analysis:\u003c\/strong\u003e Considers ideas and theories that were current at the beginning of the 20th century to explain why views changed over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReadable narrative:\u003c\/strong\u003e The text is organized to guide a non-specialist through complex observational and theoretical changes without assuming advanced prior knowledge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis book is best for readers interested in the history of astronomy, undergraduate students, and amateur astronomers who want a documented account of how major concepts such as extragalactic systems and universal expansion entered mainstream science. It benefits those who appreciate primary source discussion and historical reconstruction rather than a modern textbook treatment.\u003c\/p\u003e\u003cp\u003eThose looking for a modern cosmology textbook, technical data analysis, or up-to-the-minute observational results should look elsewhere; the focus here is historiographical and archival, not current observational catalogues or contemporary cosmological models.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDetailed archival material provides authentic insight into the period's scientific debate and reasoning.\u003c\/li\u003e\n\u003cli\u003eConcentrated coverage of 1900-1931 makes the narrative focused and easier to follow than broader surveys.\u003c\/li\u003e\n\u003cli\u003eExplains how observational evidence and theoretical ideas combined to shift consensus, useful for history of science courses.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eNot a modern textbook on cosmology, so it lacks recent discoveries and modern theoretical context.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitle\u003c\/td\u003e\n\u003ctd\u003eThe Expanding Universe: Astronomy's 'Great Debate', 1900-1931\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuthor\u003c\/td\u003e\n\u003ctd\u003eRobert W. Smith\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOriginal publication\u003c\/td\u003e\n\u003ctd\u003e1982 (reprint edition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage period\u003c\/td\u003e\n\u003ctd\u003e1900 to 1931\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocus topics\u003c\/td\u003e\n\u003ctd\u003eSize of the star system, external galaxies, expansion of the Universe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial used\u003c\/td\u003e\n\u003ctd\u003eArchive material and historical interpretations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThis is a strong choice for readers seeking a well-documented historical account of how astronomers moved from a small stellar system picture to recognizing other galaxies and cosmic expansion. Its archival approach and focused timeframe give good value to students and history-minded readers, while those needing contemporary observational or technical detail should supplement it with modern sources.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes this book cover modern cosmology?\u003c\/strong\u003e\u003cbr\u003eNo. It concentrates on historical developments up to 1931 and explains the debates and evidence of that era rather than modern cosmological theory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the book suitable for beginners?\u003c\/strong\u003e\u003cbr\u003eYes. The narrative is accessible to interested non-specialists and undergraduates, though readers should expect a historical rather than technical emphasis.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat primary sources are used?\u003c\/strong\u003e\u003cbr\u003eThe book uses archival material and contemporary writings from the period to interpret the processes and events of the Great Debate.\u003c\/p\u003e","brand":"Robert W. Smith","offers":[{"title":"Default Title","offer_id":48763012579547,"sku":"0521130069","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71KKSU3ULwL._SL1500.jpg?v=1778494376","url":"https:\/\/gearmusthave.com\/products\/the-expanding-universe-astronomys-great-debate-1900-1931","provider":"GearMustHave","version":"1.0","type":"link"}