Decoding the Heavens

Author: Jo Marchant
Publisher: ReadHowYouWant.com
ISBN: 1459600096
Format: PDF, Docs
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In Decoding the Heavens, Jo Marchant tells for the first time the full story of the hundred-year quest to decipher the ancient Greek computer known as the Antikythera Mechanism. Along the way she unearths a diverse cast of remarkable characters and explores the deep roots of modern technology in ancient Greece and the medieval European and Islamic worlds. At its heart, this is an epic adventure and mystery, a book that challenges our assumptions about technology through the ages.

Decoding the Heavens

Author: Jo Marchant
Publisher: Random House
ISBN: 0099519763
Format: PDF, Kindle
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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

Our Beautiful Moon and its Mysterious Magnetism

Author: Mike Fuller
Publisher: Springer Science & Business Media
ISBN: 3319002783
Format: PDF, Kindle
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This book is a summary of the history of discovering the moon. The author has been involved in the Apollo program, working with its samples and this book covers these efforts. It describes the analysis methods of lunar samples and their interpretation to understand lunar paleomagnetism. The book has adopted an historical approach throughout, tracing the development of the ideas of the Earth-moon system, of the birth of the space age, of paleomagnetism and finally of lunar magnetism and its evidence for an early lunar dynamo.

Chaos

Author: Richard Kautz
Publisher: OUP Oxford
ISBN: 0191035548
Format: PDF, Docs
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Based on only elementary mathematics, this engaging account of chaos theory bridges the gap between introductions for the layman and college-level texts. It develops the science of dynamics in terms of small time steps, describes the phenomenon of chaos through simple examples, and concludes with a close look at a homoclinic tangle, the mathematical monster at the heart of chaos. The presentation is enhanced by many figures, animations of chaotic motion (available on a companion CD), and biographical sketches of the pioneers of dynamics and chaos theory. To ensure accessibility to motivated high school students, care has been taken to explain advanced mathematical concepts simply, including exponentials and logarithms, probability, correlation, frequency analysis, fractals, and transfinite numbers. These tools help to resolve the intriguing paradox of motion that is predictable and yet random, while the final chapter explores the various ways chaos theory has been put to practical use.

A Portable Cosmos

Author: Alexander Jones
Publisher: Oxford University Press
ISBN: 019973934X
Format: PDF, ePub
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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.

The Shadow King

Author: Jo Marchant
Publisher: Da Capo Press
ISBN: 0306821346
Format: PDF, Mobi
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More than 3,000 years ago, King Tutankhamun's desiccated body was lovingly wrapped and sent into the future as an immortal god. After resting undisturbed for more than three millennia, King Tut's mummy was suddenly awakened in 1922. Archaeologist Howard Carter had discovered the boy-king's tomb, and the soon-to-be famous mummy's story--even more dramatic than King Tut's life--began. The mummy's "afterlife" is a modern story, not an ancient one. Award-winning science writer Jo Marchant traces the mummy's story from its first brutal autopsy in 1925 to the most recent arguments over its DNA. From the glamorous treasure hunts of the 1920s to today's high-tech scans in volatile modern Egypt, Marchant introduces us to the brilliant and sometimes flawed people who have devoted their lives to revealing the mummy's secrets, unravels the truth behind the hyped-up TV documentaries, and explains what science can and can't tell us about King Tutankhamun.

The Antikythera Mechanism

Author: Charles River Charles River Editors
Publisher: Createspace Independent Publishing Platform
ISBN: 9781542408417
Format: PDF, ePub, Docs
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*Includes pictures *Chronicles the discovery and theories over the mechanism's origins and capabilities *Includes footnotes, online resources and a bibliography for further reading. *Includes a table of contents "It multiplies, divides and subtracts, but you can't program it." - Michael Edmunds Discovering ancient shipwrecks hasn't been a novelty for thousands of years, but when artifacts were salvaged from a Roman shipwreck off the Greek island of Antikythera in 1900, the discovery of one set off one of the great mysteries of antiquity. When sponge divers investigated the shipwreck, they found the kind of items often associated with such discoveries, including marble statues, pottery, jewelry, and coins, but they also discovered a strange object, the likes of which nobody had ever seen before. Initially assumed to be pieces of rock, it turned out that the item, soon to be dubbed the Antikythera mechanism, consisted of dozens of pieces, many of which had gears. In fact, while scholars quickly deduced that it had an astronomical purpose, many believed the mechanism was too advanced to actually date back to antiquity. As it turned out, of course, the Antikythera mechanism did date back to the 1st or 2nd century BCE, and as scholars began to more fully comprehend its abilities, fascination over the device grew. In conjunction with the determination that the mechanism was an analog computer of sorts that could predict astronomical phenomena like the positions of stars and eclipses, conjecture over the origins of the device led to theories over what the Romans were going to do with it, and whether the device was created by the Greek genius Archimedes himself. To this day, debate continues over whether there were predecessors to the model, where the astronomical observations that went into creating the model were taken, and whether the ultimate origins of the device might even be Babylonian. The Antikythera Mechanism: The History and Mystery of the Ancient World's Most Famous Astronomical Device chronicles the discovery and study of the famous device. Along with pictures of important people, places, and events, you will learn about the Antikythera mechanism like never before, in no time at all.