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发表于2024-11-08
Longitude pdf epub mobi txt 电子书 下载 2024
The tenth anniversary edition of the dramatic human story of an epic scientific quest: the search for the solution of how to calculate longitude and the unlikely triumph of an English genius. With a new Foreword by the celebrated astronaut Neil Armstrong. 'Sobel has done the impossible and made horology sexy -- no mean feat' New Scientist Anyone alive in the 18th century would have known that 'the longitude problem' was the thorniest scientific dilemma of the day -- and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives, and the increasing fortunes of nations, hung on a resolution. The quest for a solution had occupied scientists and their patrons for the better part of two centuries when, in 1714, Parliament upped the ante by offering a king's ransom (GBP20,000) to anyone whose method or device proved successful. Countless quacks weighed in with preposterous suggestions. The scientific establishment throughout Europe -- from Galileo to Sir Isaac 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. Full of heroism and chicanery, brilliance and the absurd, LONGITUDE is also a fascinating brief history of astronomy, navigation and clockmaking.
真实的故事,却比小说更精彩!John Harrison 从一开始为了2万英镑的巨额奖金开始研究航海钟,到后来不断自我突破刷新计时精度,H1,H2,H3,H4,花费数十年穷其一生,不断推进航海钟的创新。虽然后期在时钟法与天体观测法的争斗中受到不公正的待遇,但最终Harrion证明了自身伟大的价值。高精度航海钟的发明,为大航海时代扫除了障碍,为日不落帝国的崛起作出卓越贡献!有机会定要去伦敦市政厅,参观下那些代表技术文明荣耀的展品!
评分真实的故事,却比小说更精彩!John Harrison 从一开始为了2万英镑的巨额奖金开始研究航海钟,到后来不断自我突破刷新计时精度,H1,H2,H3,H4,花费数十年穷其一生,不断推进航海钟的创新。虽然后期在时钟法与天体观测法的争斗中受到不公正的待遇,但最终Harrion证明了自身伟大的价值。高精度航海钟的发明,为大航海时代扫除了障碍,为日不落帝国的崛起作出卓越贡献!有机会定要去伦敦市政厅,参观下那些代表技术文明荣耀的展品!
评分真实的故事,却比小说更精彩!John Harrison 从一开始为了2万英镑的巨额奖金开始研究航海钟,到后来不断自我突破刷新计时精度,H1,H2,H3,H4,花费数十年穷其一生,不断推进航海钟的创新。虽然后期在时钟法与天体观测法的争斗中受到不公正的待遇,但最终Harrion证明了自身伟大的价值。高精度航海钟的发明,为大航海时代扫除了障碍,为日不落帝国的崛起作出卓越贡献!有机会定要去伦敦市政厅,参观下那些代表技术文明荣耀的展品!
评分真实的故事,却比小说更精彩!John Harrison 从一开始为了2万英镑的巨额奖金开始研究航海钟,到后来不断自我突破刷新计时精度,H1,H2,H3,H4,花费数十年穷其一生,不断推进航海钟的创新。虽然后期在时钟法与天体观测法的争斗中受到不公正的待遇,但最终Harrion证明了自身伟大的价值。高精度航海钟的发明,为大航海时代扫除了障碍,为日不落帝国的崛起作出卓越贡献!有机会定要去伦敦市政厅,参观下那些代表技术文明荣耀的展品!
评分真实的故事,却比小说更精彩!John Harrison 从一开始为了2万英镑的巨额奖金开始研究航海钟,到后来不断自我突破刷新计时精度,H1,H2,H3,H4,花费数十年穷其一生,不断推进航海钟的创新。虽然后期在时钟法与天体观测法的争斗中受到不公正的待遇,但最终Harrion证明了自身伟大的价值。高精度航海钟的发明,为大航海时代扫除了障碍,为日不落帝国的崛起作出卓越贡献!有机会定要去伦敦市政厅,参观下那些代表技术文明荣耀的展品!
一直不理解为什么可以“以时间差确定经度",下图的推导是我想了好长时间才想出来。。。。 也就是说不管我什么时候出海,T这个量是多少没有关系,也不管我在海上东奔西走晃荡了多久,只要我在出海时校正了格林威治时间,在某个海域当地的正午时间这个时候去看航海钟上是几点,用...
评分又是一个夜晚,克洛迪斯爵士率领着五艘军舰,共两千名将士在锡利群岛附近的洋面航行。但是这个夜晚有点特别,浓雾笼罩着海面,辩不清方向,就连罗盘也没法为他们准确定位。几分钟后,四艘军舰相继撞上礁石,船员们还来不及反应,全都葬身海底,无一幸免。 自15世纪以来,随着...
评分又是一个夜晚,克洛迪斯爵士率领着五艘军舰,共两千名将士在锡利群岛附近的洋面航行。但是这个夜晚有点特别,浓雾笼罩着海面,辩不清方向,就连罗盘也没法为他们准确定位。几分钟后,四艘军舰相继撞上礁石,船员们还来不及反应,全都葬身海底,无一幸免。 自15世纪以来,随着...
评分 评分Longitude pdf epub mobi txt 电子书 下载 2024