Be a mire of mechanical and mathematical detail simple easy to follow and enjoy by anyone whether they are confirmed Le Vilain petit atar landlubbers or have a previous interest in the seaFrom a purest po This book was intended for the general reader Conseuently it did not deal much with the details either of the astronomical or mechanical approaches to solving the problem of findingongitude on the high seas Instead it focused on description of John Harrison s uest to build an ocean chronometer The author treats the difficulties Harrison encountered convincing the Board of Longitude of the efficacy of his devices as a matter of petty politics and egotism without offering the reader sufficient detail about the technical disputes to make any judgments about the scientific debate at the center of the controversyThis book was a bit of a disappointment considering the glowing reviews it received I was reminded of this book today because in was on the PageADay Book Lover s Calendar for 3 31 2015 I read it back in the year 2000 I have favorable recollections of the book and I found it to be in interesting story The following short review is copied from the calendarAnyone with an interest in history or things maritime should consider Longitude said USA Today of this bestseller Sobel describes 18th century clockmaker John Harrison s struggle to invent an accurate chronometer which measured time necessary to calculate Adoniram Judson longitude while at sea Reuiring decades of painstaking research Harrison finally accomplished his goal but then faded into the mists of time until his reputation was revived by Sobel s book which is full ofittle known facts about science ships and England in the 1700s LONGITUDE THE TRUE STORY OF A LONE GENIUS WHO SOLVED THE GREATEST SCIENTIFIC PROBLEM OF HIS TIME by Dava Sobel 1995 Walker Company 2007The Числа link below is to an excerpt from the book Longitude from Dava Sobel is a fascinating account of how a virtually unknown watchmaker named John Harrison conuered one of the oldest and thorniest problems surrounding the ocean voyages the problem of accurately measuringongitude which stumped even the best of scientific minds for centuries A fascinating problemIt was Ptolemy in Geographia written in the 2nd century who contributed the concept of a co ordinate system based on the imaginary Is Your Networking Net Working? lines ofatitude and The Revolutionary Paul Revere longitude for accurately plotting any spot on the surface of earth With these imaginaryines he bought a new Tainted Breeze: The Great Hanging at Gainesville, Texas, 1862 light in to the maritime explorations and map making methods of his time The sailors while Non fiction about the uest to develop a reliable method for measuringongitude The first several chapters describe the difficulties encountered by ships attempting to navigate solely based on atitude The focus then shifts to a biography of John Harrison the 18th century clockmaker who attempted to solve this problem based on timekeeping It also describes his primary competitor and adversary Nevil Maskelyne Who Was Maskelyne who was on proving that the best approach involved astronomical readings They and many others vied for the monetary prize offered by the British government Along the way the author highlights some of the outlandish ideas one of which involves barking dogsThe book is far than a scientific analysis of the problem of finding ongitude It portrays the intrigue rivalries conflicts and accidental di In Longitude Dava Sobel chronicles the world s uest to tame time In 1714 the English Parliament passed the All About Light Rookie Read About Science longitude act It established the Board of Longitude and offered a prize of 20000 pounds to anyone who could find a simple and practical method for the precise determination of a ship songitude In particular Sobel highlights John Harrison s pursuit of the prize She traces the arc of his career and details the
innovations of each of his subseuent entries H1 H5 Unfortunately even though his Chronometers repeatedly proved of each of his subseuent entries H1 H5 Unfortunately even though his Chronometers repeatedly proved worth in Sea trial after sea trial and the watch uickly gained adherents among sea captains Harrison was thwarted at every turn in his attempt to claim the prize Jealous rivals on the board used their influence to change the rules of the contest multiple times His relations with the board became so acrimonious that eventually his friends went over the board s head and appealed dire. D Harrison's forty year obsession with building his perfect timekeeper known today as the chronometer Full of heroism and chicanery it is also a fascinating brief history of astronomy navigation and clock making and opens a new window on our worldOn its 10th anniversary a gift edition of this classic book with a forward by one of history's greatest explorers and eight pages of color illustrations. ,
Been solved Sobel s short history reads uickly The book contains nice photographs of Harrison s clocks showing their complex inner workings The chronometers have been restored and now reside in British museums Sobel explains some of the principles of clock mechanisms and details some of Harrison s innovations She also covers failed as well as successful astronomical approaches to finding ongitude But this is also a human interest story of an odd difficult man a homespun insular genius who faces the complex scientific society of eighteenth century England Recommended for the science buff and general reader alike Really Sanando El Alma Eterna - Perspectivas de Vidas Pasadas y Regresion Espiritual lovely and very interesting reading Everybody knows aboutongitude but I guess not so many know the struggles and fights behind the tries to conuer it including myselfJohn Harrison was a genius of his times beside the fact that he produced the first accurate marine watches for calculating Crown of Cinder (Wings of Fury, longitude his pieces are works of artH1H3And the masterpiece H4 completed in 1759The book is writt An amazing book following the attempts to solve theongitudinal navigation problems The author s research covered several hundred years of partial success and many failures Especially interesting was the English contest for solving the problem An amazing man John Harrison worked tirelessly to conuer the problem The trials of Harrison and the jealously of others in his attempts made for a good story This genius is credited with producing the first marine machine to accurately calculate How to Draft Basic Patterns longitude Then he reduced his machine to a marine watch He made numerous chronometers and many of them may be seen in the Royal Observatory and other places in EnglandWell written and documented with bibliography I first read Longitude by Dava Sobel just after I finished high school and I devoured it in a sitting or two It was the first non fiction book I think that I really couldn t put down The true story is greategendary historical figures Crafting Novels Short Stories like Isaac Newton Galileo James Cook King George III scientific conundrums innovative engineering a ransom of millions at stake and a humbleone man competing against oppressive and manipulative big wigsBackground Latitude The Road from Damascus lines are the parallelines that circle the globe above and below the euator and any sailor could figure out his A Seat At The Table: A Novel of Forbidden Choices latitude by measuring theength of the day or Soul Unchained (Sons of Wrath, looking at the angle of the sun or the north star But finding one songitude the Hunted Wolf (Seraphine Thomas, lines that connected the north and south poles was much difficult Anyone could determine that he was on the tropic of cancer but determining how far along the tropic of cancer was a different challenge one that if solved would revolutionize navigation and save countlessives In 1714 Parliament offered a purse worth 20000
Pounds millions today to anyone who could solve the ongitude problem John Harrison was a uiet hard working clockmakermillions today to anyone who could solve the ongitude problem John Harrison was a uiet hard working clockmaker believed he had found the wayRe reading this now many of the details and events in the story remain as compelling as they were ten years ago Longitude is a tremendous tale of battling scientists
AND THE PERSEVERANCE OF HARD WORKthe perseverance of hard work and humility through political intrigue and greed Do I recommend it Yes to anyone interested in history science engineering geography politics astronomy navigation clockmaking Would I teach it Not in an English class but I d refer to it as a great example of science writing Lasting Impression This book keeps a wonderful balance between the personal scientific and political elements of the story It s history you can escape into Longitude is a remarkable achievement The recipe for sales success in international book sales rarely contains such unpromising ingredients as these an obsessive carpenter s son from Yorkshire an intractable navigational problem and a Wilhelm Van Gloeden lot of clocks Yet Longitude succeeds in weaving a narrative full of clashing of ideas intriguing personalities bizarre anecdotes and at its heart a tale of theittle guy challenging the EstablishmentThe story is one that has Samotny rejs OPTY long been familiar to both naval historians andovers of clocks two introspective groups who had failed to bring it to a wider public Enter Dava Sorbel with a journalist s nose for a good story and the flare to tell it well This is a page turner that makes what could. He scientific establishment of Europe from Galileo to Sir Issac Newton had mapped the heavens in both hemispheres in its certain pursuit of a celestial answer In stark contrast one man John Harrison dared to imagine a mechanical solution a clock that would keep precise time at sea something no clock had ever been able to do on and Longitude is a dramatic human story of an epic scientific uest an.
Summary Longitude The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His TimeOn October 22 1707 four English warships crashed into the rocks of the Scilly Isles southwest of England They uickly sank killing 2000 men The cause of this catastrophe was the inability to determine Omega Beloved - Reimagined longitude a problem that beset mariners everywhere In 1714 the British Parliament set a 20000 reward for whoever could solve the problem The Board of Longitude which would be primarily comprised of astronomers was set up to award the money To win the full prize the method or device had to be accurate to within one half degree on a trip from England to the West IndiesThere had been many ideas about how to determineongitude but none worked reliably They fell into two basic camps the astronomical and the clock The idea behind astronomy was to find a pattern of stars the track of the moon or even the eclipses of the four known moons of Jupiter that would yield The Nalco Guide to Boiler Failure Analysis longitude The clock idea was based on time difference 15 degrees ofongitude euals an
Hour So A Clock That Could Keep Accurate Time SetSo a clock that could keep accurate time set London time could be compared with a clock set to Who Is Esau Edom? local time Theocal time could be determined by sighting the sun at noon The time difference would give the degrees of Weeds Among the Wheat Discernment Where Prayer and Action Meet longitude from London But prior to the eighteenth century clocks didn t work reliably in the rough environment of ships at sea so the London clock would be off In 1727 a self educated village carpenter and clock maker John Harrison heard about the prize In 1730 he had plans for a chronometer as mariner s clocks of sufficient accuracy wouldater be called He showed his plans to Edmund Halley of comet fame a board member who sent him to a prominent clockmaker and fellow Royal Society member who encouraged Harrison to build his clock
years ater presented the clock to the board He had been able to take it on a voyage to Lisbon where it proved its worth Harrison s clock was original intricate and exuisitely crafted The board was impressed but Harrison himself was not He felt he could do better and took another five years to build a second chronometer The Royal Society tested the second clock and gave it accolades but Harrison again decided he could do even better and took twenty years to build a thirdIn the thirty years Harrison was building his three clocks astronomers were busily cataloging stars and navigational instruments were vastly improving By 1760 the board was considering a complicated but effective method of calculating a ship s Productive Christians in an Age of Guilt Manipulators A Biblical Response to Ronald J Sider longitude from the positions of the moon and stars And since the board was mostly made up of astronomers they instinctively preferred an astronomical solution to a simply mechanical oneHarrison was awarded the prestigious Copley Gold Medal in 1749 at the recommendation of the Royal Society for the many innovations he had made in his clocks that made them so accurate and reliable But as usual Harrison himself was the hardest to satisfy Immediately after completing clock three he built a fourth a pocket watch that ultimately would win the coveted prize On a West Indies trip the pocket chronometer worked perfectly but the astronomers on the board dawdled about awarding the prize since they were now enad with an astronomical solution Since presenting his first chronometer Harrison had been receiving stipends so that his work could continue but the prize was elusive Harrison felt his chief nemesis was Astronomer Royal Nevil Maskelyne a strong advocate of the astronomical method Maskelyne took it upon himself to conduct further tests on Harrison s watch Finally in 1765 the board awarded Harrison 10000 half the prize and ordered him to make two of the watches to show it could be duplicated The board also commissioned another clockmaker to build an identical twin of Harrison s watch The twin was selected to accompany Captain Cook on his second voyage around the world The chronometer won high praise from Cook who used it to make accurate maps Finally through the intervention of King George III Harrison received a final 8750 in 1773One of the biggest problems with Harrison s chronometer was the cost ateast 400 to duplicate when a sextant and tables cost 20 But fifteen years Lest Darkness Fall and Related Stories later the price would drop to 80 and would keep declining By 1815 over 5000 chronometers were in service The problem ofongitude had. Anyone alive in the eighteenth century would have known that the The Body Scoop for Girls longitude problem was the thorniest scientific dilemma of the day and had been for centuries Lacking the ability to measure theirongitude sailors throughout the great ages of exploration had been You Don't Own Me: How Mattel v. MGA Entertainment Exposed Barbie's Dark Side literallyost at sea as soon as they FREE AUDIOBOOKS 01 How to download Free AUDIO BOOKS MP3 File Human Read or Computer Generated TKP 0027 lost sight ofand Thousands of ives and the increasing fortunes of nations hung on a resolutionT. ,five years ater