A Portable Cosmos

Author: Alexander Jones
Publisher: Oxford University Press
ISBN: 0190618582
Size: 55.57 MB
Format: PDF, Mobi
View: 2704
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From the Dead Sea Scrolls to the Terracotta Army, ancient artifacts have long fascinated the modern world. However, the importance of some discoveries is not always immediately understood. This was the case in 1901 when sponge divers retrieved a lump of corroded bronze from a shipwreck at the bottom of the Mediterranean Sea near the Greek island of Antikythera. Little did the divers know they had found the oldest known analog computer in the world, an astonishing device that once simulated the motions of the stars and planets as they were understood by ancient Greek astronomers. Its remains now consist of 82 fragments, many of them containing gears and plates engraved with Greek words, that scientists and scholars have pieced back together through painstaking inspection and deduction, aided by radiographic tools and surface imaging. More than a century after its discovery, many of the secrets locked in this mysterious device can now be revealed. In addition to chronicling the unlikely discovery of the Antikythera Mechanism, author Alexander Jones takes readers through a discussion of how the device worked, how and for what purpose it was created, and why it was on a ship that wrecked off the Greek coast around 60 BC. What the Mechanism has uncovered about Greco-Roman astronomy and scientific technology, and their place in Greek society, is truly amazing. The mechanical know-how that it embodied was more advanced than anything the Greeks were previously thought capable of, but the most recent research has revealed that its displays were designed so that an educated layman could understand the behavior of astronomical phenomena, and how intertwined they were with one's natural and social environment. It was at once a masterpiece of machinery as well as one of the first portable teaching devices. Written by a world-renowned expert on the Mechanism, A Portable Cosmos will fascinate all readers interested in ancient history, archaeology, and the history of science.

A Portable Cosmos

Author: Alexander Jones
Publisher: Oxford University Press
ISBN: 019973934X
Size: 45.81 MB
Format: PDF
View: 3240
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From the Dead Sea Scrolls to the Terracotta Army, ancient artifacts have long fascinated the modern world. However, the importance of some discoveries is not always immediately understood. This was the case in 1901 when sponge divers retrieved a lump of corroded bronze from a shipwreck at the bottom of the Mediterranean Sea near the Greek island of Antikythera. Little did the divers know they had found the oldest known analog computer in the world, an astonishing device that once simulated the motions of the stars and planets as they were understood by ancient Greek astronomers. Its remains now consist of 82 fragments, many of them containing gears and plates engraved with Greek words, that scientists and scholars have pieced back together through painstaking inspection and deduction, aided by radiographic tools and surface imaging. More than a century after its discovery, many of the secrets locked in this mysterious device can now be revealed. In addition to chronicling the unlikely discovery of the Antikythera Mechanism, author Alexander Jones takes readers through a discussion of how the device worked, how and for what purpose it was created, and why it was on a ship that wrecked off the Greek coast around 60 BC. What the Mechanism has uncovered about Greco-Roman astronomy and scientific technology, and their place in Greek society, is truly amazing. The mechanical know-how that it embodied was more advanced than anything the Greeks were previously thought capable of, but the most recent research has revealed that its displays were designed so that an educated layman could understand the behavior of astronomical phenomena, and how intertwined they were with one's natural and social environment. It was at once a masterpiece of machinery as well as one of the first portable teaching devices. Written by a world-renowned expert on the Mechanism, A Portable Cosmos will fascinate all readers interested in ancient history, archaeology, and the history of science.

A Portable Cosmos

Author: Alexander Jones
Publisher: Oxford University Press
ISBN: 0190618590
Size: 58.86 MB
Format: PDF
View: 6541
Download Read Online
From the Dead Sea Scrolls to the Terracotta Army, ancient artifacts have long fascinated the modern world. However, the importance of some discoveries is not always immediately understood. This was the case in 1901 when sponge divers retrieved a lump of corroded bronze from a shipwreck at the bottom of the Mediterranean Sea near the Greek island of Antikythera. Little did the divers know they had found the oldest known analog computer in the world, an astonishing device that once simulated the motions of the stars and planets as they were understood by ancient Greek astronomers. Its remains now consist of 82 fragments, many of them containing gears and plates engraved with Greek words, that scientists and scholars have pieced back together through painstaking inspection and deduction, aided by radiographic tools and surface imaging. More than a century after its discovery, many of the secrets locked in this mysterious device can now be revealed. In addition to chronicling the unlikely discovery of the Antikythera Mechanism, author Alexander Jones takes readers through a discussion of how the device worked, how and for what purpose it was created, and why it was on a ship that wrecked off the Greek coast around 60 BC. What the Mechanism has uncovered about Greco-Roman astronomy and scientific technology, and their place in Greek society, is truly amazing. The mechanical know-how that it embodied was more advanced than anything the Greeks were previously thought capable of, but the most recent research has revealed that its displays were designed so that an educated layman could understand the behavior of astronomical phenomena, and how intertwined they were with one's natural and social environment. It was at once a masterpiece of machinery as well as one of the first portable teaching devices. Written by a world-renowned expert on the Mechanism, A Portable Cosmos will fascinate all readers interested in ancient history, archaeology, and the history of science.

Decoding The Mechanisms Of Antikythera Astronomical Device

Author: Jian-Liang Lin
Publisher: Springer
ISBN: 3662484471
Size: 39.17 MB
Format: PDF, ePub
View: 4772
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This book presents a systematic design methodology for decoding the interior structure of the Antikythera mechanism, an astronomical device from ancient Greece. The historical background, surviving evidence and reconstructions of the mechanism are introduced, and the historical development of astronomical achievements and various astronomical instruments are investigated. Pursuing an approach based on the conceptual design of modern mechanisms and bearing in mind the standards of science and technology at the time, all feasible designs of the six lost/incomplete/unclear subsystems are synthesized as illustrated examples, and 48 feasible designs of the complete interior structure are presented. This approach provides not only a logical tool for applying modern mechanical engineering knowledge to the reconstruction of the Antikythera mechanism, but also an innovative research direction for identifying the original structures of the mechanism in the future. In short, the book offers valuable new insights for all readers who are interested in the Antikythera mechanism.

Spartans

Author: Nigel M. Kennell
Publisher: John Wiley & Sons
ISBN: 1444360531
Size: 54.45 MB
Format: PDF, Mobi
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Spartans: A New History chronicles the complete history of ancient Sparta from its origins to the end of antiquity. Helps bridge the gap between the common conceptions of Sparta and what specialists believe and dispute about Spartan history Applies new techniques, perspectives, and archaeological evidence to the question of what it was to be a Spartan Takes into account new specialist scholarship and research published in Greek, which is not readily available elsewhere Places Spartan society into its wider Greek context

Decoding The Heavens

Author: Jo Marchant
Publisher: Random House
ISBN: 0099519763
Size: 50.18 MB
Format: PDF, Docs
View: 2684
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"In 1900 a group of sponge divers blown off course in the Mediterranean discovered an Ancient Greek shipwreck dating from around 70 BC. Lying unnoticed for months amongst their hard-won haul was what appeared to be a formless lump of corroded rock, which turned out to be the most stunning scientific artefact we have from antiquity. For more than a century this Antikythera mechanism' puzzled academics, but now, more than 2000 years after the device was lost at sea, scientists have pieced together its intricate workings. Unmatched in complexity for 1000 years, it was able to predict eclipses and track the paths of the Sun and the Moon through the zodiac, and probably even showed ancient astronomers the movements of the five known planets. In Decoding the Heavens, Jo Marchant tells for the first time the story of the 100-year quest to understand this ancient computer. Along the way she unearths a diverse cast of remarkable characters ranging from Archimedes to Jacques Cousteau and explores the deep roots of modern technology not only in ancient Greece but in the Islamic world and medieval Europe too. At heart an epic adventure story, it is a book that challenges our assumption

Time And Cosmos In Greco Roman Antiquity

Author: James Evans
Publisher: Princeton University Press
ISBN: 0691174407
Size: 34.73 MB
Format: PDF, Kindle
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The Greeks and Romans lived according to a distinctively Hellenic conception of time as an aspect of cosmic order and regularity. Appropriating ideas from Egypt and the Near East, the Greeks integrated them into a cosmological framework governed by mathematics and linking the cycles of the heavenly bodies to the human environment. From their cosmology they derived instruments for measuring and tracking the passage of time that were sophisticated embodiments of scientific reasoning and technical craft, meant not solely for the study of specialists and connoisseurs but for the public gaze. Time and Cosmos in Greco-Roman Antiquity, the accompanying catalogue for the exhibition at the Institute for the Study of the Ancient World, New York University, explores through thematic essays and beautiful illustrations the practical as well as the artistic, ideological, and spiritual role of time technology and time imagery in the Mediterranean civilizations. Highlights among the more than one hundred objects from the exhibition include marvelously inventive sundials and portable timekeeping devices, stone and ceramic calendars, zodiac boards for displaying horoscopes, and mosaics, sculptures, and coins that reflect ancient perceptions of the controlling power of time and the heavens. Contributors include James Evans, Dorian Gieseler Greenbaum, Stephan Heilen, Alexander Jones, Daryn Lehoux, Karlheinz Schaldach, John Steele, and Bernhard Weisser. Exhibition Dates: October 19, 2016–April 23, 2017 Cover photograph © Bruce M. White, 201?

A Brief Introduction To Astronomy In The Middle East

Author: John M. Steele
Publisher: Saqi
ISBN: 0863568963
Size: 17.54 MB
Format: PDF, Mobi
View: 5171
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The Middle East is the birthplace of astronomy and the centre for its development during the medieval period. In this brief introduction John Steele offers an intriguing insight into Middle Eastern achievements in astronomy and their profound influence on the rest of the world. Amongst other things, the book traces the Late Babylonians' ingenious schemes for modelling planetary motion. It also reveals how medieval Islamic advances in the study of the heavens, and the design of precise astronomical instruments, led to breakthroughs by Renaissance practitioners such as Copernicus and Kepler. An invaluable introduction to one of the oldest sciences in the world.

Chasing Shadows

Author: Clemency Montelle
Publisher: JHU Press
ISBN: 0801899109
Size: 47.71 MB
Format: PDF, Mobi
View: 4806
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Chasing Shadows is an invitingly written and highly informative exploration of the early history of astronomy.