Calendar: Humanity’s Epic Struggle to Determine a True and Accurate Year

Price: (as of - Details) The adventure spans the world from Stonehenge to astronomically aligned pyramids at Giza, from Mayan observatories at Chichen Itza to the atomic clock in Washington, the world's official timekeeper since the 1960s. We visit cultures from Vedic India and Cleopatra's Egypt to Byzantium and the Elizabethan court; and meet an impressive cast of historic personages from Julius Caesar to Omar Khayyam, and giants of science from Galileo and Copernicus to Stephen Hawking. Our present calendar system predates the invention of the telescope, the mechanical clock, and the concept ol zero and its development is one of the great untold stories of science and history. How did Pope Gregory set right a calendar which was in error by at least ten lull days? What did time mean to a farmer on the Rhine in 800 A.D.? What was daily life like in the Middle Ages, when the general population reckoned births and marriages by seasons, wars, kings'' reigns, and saints' days? In short, how did the worldThe adventure spans the world from Stonehenge to astronomically aligned pyramids at Giza, from Mayan observatories at Chichen Itza to the atomic clock in Washington, the world's official timekeeper since the 1960s. We visit cultures from Vedic India and Cleopatra's Egypt to Byzantium and the Elizabethan court; and meet an impressive cast of historic personages from Julius Caesar to Omar Khayyam, and giants of science from Galileo and Copernicus to Stephen Hawking. Our present calendar system predates the invention of the telescope, the mechanical clock, and the concept ol zero and its development is one of the great untold stories of science and history. How did Pope Gregory set right a calendar which was in error by at least ten lull days? What did time mean to a farmer on the Rhine in 800 A.D.? What was daily life like in the Middle Ages, when the general population reckoned births and marriages by seasons, wars, kings'' reigns, and saints' days? Publisher ‏ : ‎ Harper Perennial Publication date ‏ : ‎ January 1, 2001 Edition ‏ : ‎ Reprint Language ‏ : ‎ English Print length ‏ : ‎ 328 pages ISBN-10 ‏ : ‎ 0380793245 ISBN-13 ‏ : ‎ 978-0380793242 Item Weight ‏ : ‎ 8.8 ounces Dimensions ‏ : ‎ 5.25 x 0.79 x 8 inches Best Sellers Rank: #716,427 in Books (See Top 100 in Books) #145 in Physics of Time (Books) #339 in Science Essays & Commentary (Books) #393 in Scientific Reference Customer Reviews: 4.6 4.6 out of 5 stars (70) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); }); Customers find the book engaging and fascinating, with one review noting it doesn't waste time going down blind alleys. They appreciate its informative content, with one customer highlighting its well-researched historical information about numbers and mathematics.

Calendar: Humanity’s Epic Struggle to Determine a True and Accurate Year

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