A Portable Cosmos (FREE)


A Portable CosmosO go around And as it s still referred to as the Mechanism by academics that adds another note pleasantly weird archaic imagery to the whole thingI oved the organization of this book clear thematic chapters and right up front the author pointed out that perhaps not everyone is eually interested in a deep read of every single theme for example possibly the theme of How Do Gears work That is something I feel completely comfortable taking on faithThat eft plenty of parts I was enthralled by inc The conglomerate of corroded and broken bronze pieces eventually known as the Antikythera Mechanism were salvaged from a shipwreck in the early 1900s Initially the fragments were studied without any certainty of what they were By the end of that century it was confirmed that the metal device with its gears and advanced clockwork mecahnism was some kind of analog computer It was eventually determined that the mechanism predicted phases of the moon planetary positions and even eclipses with great precision A Portable Cosmos provides a description of the discovery of the Antikythera mechanism an extensive desciption of the device itself and how it worked as well as the ancient astronomy behind it Jones explores the mystery of the Antikythera mechanism in a no nonsense fashion and includes relevant diagrams and photographs where necessary The author does a thorough job of presenting numerous related topics such as the history of astronomy and astrology calendrics and the mechanics of eclipses as well as any ancient records of such a mechanism Cicero wrote about a planetarium that Archimedes used as a teaching tool which may have been similar to the Antikythera mechanism The book is devided into thematic chapters so if the technical aspects are too detailed the reader can skip these chapters without missing out too much This book is scholarly and rather technical but is none the ess absorbing and very interesting A very well done summary of what we know about a rather enigmatic chunk of bronze and we know about a rather enigmatic chunk of bronze and we know it TIL inear tomography was a predecessor technology to CAT scans p 39 and that he Akkadians called the five planets wandering through the fixed stars bibbu wild sheep p 16. And their place in Greek society is truly amazing The mechanical know how that it embodied was 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 ayman 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 scienc. .


Or why the technology didn t catch on He remains intent on Analysis Of The Device of the device how it came to be understood historicallyThis has been treated by others as a kind of detective story filled with drama and mystery Jones in an academic treatment tends to strip the mystery and drama away No doubt this is reuired for a precise understanding of what this instrument is but it s ess fun This is often the academic compromise The book is well worth reading however The curious will earn uite a bit about ancient astronomy and mechanics It may not be the best book to begin on the subject but it will certainly inform deeply on it for those already familiar with the findAs with most books I also blogged about this one here Sects and Violence in the Ancient World for those interested Rescued from a Greek shipwreck in 1901 the Antikythera Mechanism is not an astrolabe or armillary sphere Was it a teaching tool Is it the planetarium of Archimedes that Cicero wrote about Alexander Jones fascinating book helps us earn This extraordinary astronomical clock has baffled scholars as it s unlike anything ever seen Jones fascinating book helps us earn This extraordinary astronomical clock has baffled scholars as it s unlike anything ever seen Some even thought it had fallen off a different boat many years ater to combine with the earlier wreckage The author does a thorough and painstaking job of presenting numerous related topics and filling in the background He s a professor at New York University s Institute for the Study of the Ancient World and the book is academic style exactingly annotated with a bibliography I ve studied the history of astronomy and astrology calendrics and the mechanics of eclipses but many sections were simply too detailed for my taste Perhaps the book is meant to be a classroom textbook eaving the reader without the professor at hand This book provides a very rational evidence based overview of the Antikythera Mechanism in a way that mostly demystifies it It is not in fact a piece of ancient alien technology okay I ALREADY KNEW that it wasn t alien technology but you know that Ooh what is this mysterious thing It can never be known element of it which one might think would be disappointing but it s still genuinely wondrous It s wondrous it was even discovered so plenty of wonder 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 ocked in this mysterious device can now be revealedIn 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. This is a comprehensive account of the Antikythera Mechanism an ancient complex mechanical device that displayed aspects of the heavens in miniature model from its discovery to various reconstructions of how it I used to say that if you really wanted to argue that aliens came to Earth eons ago and jump started our technology well then the Antikythera Mechanism was the only piece of actual evidence you hadThrough this carefully written book I have to modify that a bit but my amazement at this 2000 year old astronomical calculator has only increased It predicted phases of the moon planetary positions and even eclipses with great precision it turns out that it is not uite sui generis there are references to similar devices and calculations from that far ago but this is the one that has survivedJones Has Written A Very Detailed And Uite written a very detailed and uite book You need to know some astronomy to follow all of what he describes But if you want the real story devoid of hype this device needs none and are willing to ook up a few needs none and are willing to ook up a few here and there this is a great place to dive into the story of how this was found how it has been studied and what we now know about it The Antikythera Mechanism is a fascinating device Found in a shipwreck in the early 1900s its broken and corroded pieces were studied and analyzed without any certainty of what they were By the end of that century it was confirmed that the metal device with its gears and advanced clockwork insides was some kind of analog computer It was built to mimic the track of the planets the sun and the moon It could predict eclipses and it followed the phases of the moon It was an out of place artifact advanced than people of the time first century BCE were supposed to have beenJones exploration of the artifact is uite interesting but also uite technical Taking care to explain the differences between the device s method of calculating the movements of heavenly bodies and those known to astronomy and physics today the book will ose some readers due to complexity Perhaps that s only appropriate for a complex instrument such as the Antikythera Mechanism Jones doesn t wander off into speculation about who the actual maker might have been. From the Dead Sea Scrolls to the Terracotta Army ancient artifacts have ong 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 ump 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.

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