02314cam a22003133u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000100010610000640011624500740018026400510025430000470030533600260035233700260037833800360040450000310044050801290047152012590060053400450185965300230190465300130192785600430194099900170198330001UtSlPG20260610133702.0mcr n260607r2009||||utu|||||o|||||||||||||| d aUtSlPG 7aen2iso639-1 4aQaTS1 aPrice, Derek J. de Sollaq(Derek John de Solla),d1922-198310aOn the Origin of Clockwork, Perpetual Motion Devices, and the Compass 1aSalt Lake City, UT :bProject Gutenberg,c2009 a1 online resource :bmultiple file formats atextbtxt2rdacontent acomputerbc2rdamedia aonline resourcebcr2rdacarrier aRelease date is 2009-09-16 aProduced by Chris Curnow, Turgut Dincer, Joseph Cooper and the Online Distributed Proofreading Team at https://www.pgdp.net. a"On the Origin of Clockwork, Perpetual Motion Devices, and the Compass" by Derek J. de Solla Price is a scientific publication written in the mid-20th century. This work delves into the historical development and origin of various mechanical devices, including clocks and compasses, highlighting their evolution over two millennia across different cultures. Price aims to clarify misconceptions and establish a more cohesive understanding of how these technological advancements arose and influenced each other. At the start of the work, the author introduces the complexity of tracing the origins of mechanical clocks and the magnetic compass, revealing how common misunderstandings have perpetuated inaccuracies in their histories. He argues against the traditional view that simpler timekeeping devices like sundials directly led to the mechanical clock, proposing instead that they evolved from sophisticated astronomical models developed in ancient cultures. The opening sets the stage for a comprehensive examination of the technological progression from early gearing in different civilizations to the intricate mechanics of clocks and the interplay with concepts like perpetual motion and magnetism. (This is an automatically generated summary.) nOriginal publication data not identified aClocks and watches aHorology40uhttps://www.gutenberg.org/ebooks/30001 c70849d70849