Longitude - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Longitude write by Dava Sobel. This book was released on 2010-07-05. Longitude available in PDF, EPUB and Kindle. The dramatic human story of an epic scientific quest and of one man's forty-year obsession to find a solution to the thorniest scientific dilemma of the day--"the longitude problem." Anyone alive in the eighteenth 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. One man, John Harrison, in complete opposition to the scientific community, 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 land. Longitude is the dramatic human story of an epic scientific quest and of 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 clockmaking, and opens a new window on our world.
Time and Navigation
Time and Navigation - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Time and Navigation write by Andrew Kenneth Johnston. This book was released on 2015. Time and Navigation available in PDF, EPUB and Kindle. If you want to know where you are, you need a good clock. The surprising connection between time and placeais explored inaTime and Navigation- The Untold Story of Getting from Here to There, the companion book to the National Air and Space Museum exhibition of the same name. Today we use smartphones and GPS, but navigating has not always been so easy. The oldest "clock" is Earth itself, and the oldest means of keeping time came from observing changes in the sky. Early mariners like the Vikings accomplished amazing feats of navigation without using clocks at all. Pioneering seafarers in the Age of Exploration used dead reckoning and celestial navigation; later innovations such as sextants and marine chronometers honed these techniques by measuring latitude and longitude. When explorers turned their sights to the skies, they built on what had been learned at sea. For example, Charles Lindbergh used a bubble sextant on his record-breaking flights. World War II led to the development of new flight technologies, notably radio navigation, since celestial navigation was not suited for all-weather military operations. These forms of navigation were extended and enhanced when explorers began guiding spacecraft into space and across the solar system. Astronauts combined celestial navigation technology with radio transmissions. The development of the atomic clock revolutionized space flight because it could measure billionths of a second, thereby allowing mission teams to navigate more accurately. Scientists and engineers applied these technologies to navigation on earth to develop space-based time and navigation services such as GPS that is used every day by people from all walks of life. While the history of navigation is one of constant change and innovation, it is also one of remarkable continuity. Time and Navigation tells the story of navigation to help us understand where we have been and how we got there so that we can understand where we are going.
American Practical Navigator
American Practical Navigator - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook American Practical Navigator write by Nathaniel Bowditch. This book was released on 1912. American Practical Navigator available in PDF, EPUB and Kindle.
Greenwich Time and the Longitude: Official Millennium Edition
Greenwich Time and the Longitude: Official Millennium Edition - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Greenwich Time and the Longitude: Official Millennium Edition write by Derek Howse. This book was released on 1997. Greenwich Time and the Longitude: Official Millennium Edition available in PDF, EPUB and Kindle. The history of the Royal Observatory, Greenwich has been revised to coincide with the Millenium. Color illustrations and updated text tell the story of Greenwich from its foundations in 1676 to its present status as Longitude 0°, the world's Prime Meridian for measuring longitude and time. The book covers the importance of longitude for navigation and traces the history of Greenwich Time, the basis of universal time-keeping. The book is co-published with the National Maritime Museum, where Derek Howse was the former Head of Navigation and Astronomy.
Longitude, Time, and Navigation
Longitude, Time, and Navigation - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Longitude, Time, and Navigation write by Tom Bensky. This book was released on 2018-10-28. Longitude, Time, and Navigation available in PDF, EPUB and Kindle. The science behind navigation. Starts with an in-depth looks at the longitude problem from the 1700s, the goes into the science of timekeeping, and celestial navigation. Ends with a chapter concerning modern ideas time and navigation, including a look at Einstein's time dilation and GPS. Updated and revised October 2018.
