The Royal Observatory at Greenwich is home to both time and space: Greenwich Mean Time (GMT) and the Prime Meridian. But have you ever stopped to ask what the Prime Meridian is, and why it&;s in Greenwich? Why are all time zones across the world based on GMT? What is the longitude? Why is the meridian moving?
 
A succinct history of the Meridian Line and its importance in defining international time standards, On the Line: The Story of the Greenwich Meridian breaks down complex topics in manageable articles, accompanied by eighty color illustrations and fun trivia to aid understanding. This insightful, concise guide reveals why international time standards are based around the Greenwich meridian&;Longitude 0º&;where east meets west, and details the important discoveries made at Greenwich that led to time as we know it.
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Hardback. Zustand: New. Every year, thousands of people come to the Royal Observatory in Greenwich to have their photograph taken on the line of the Prime Meridian - longitude 0 Degrees - as they stand in the eastern and western hemispheres at the same time.But what is the purpose and history of the Greenwich Meridian? What other points in the world lie along it? And what links the line with navigation, timekeeping and the stars? Find out on this whistle-stop tour from the North Pole, through Greenwich, to France, Spain, Africa and Antarctica, revealing the Greenwich Meridian's fascinating history along the way. Bestandsnummer des Verkäufers LU-9781906367619
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Hardback. Zustand: New. Every year, thousands of people come to the Royal Observatory in Greenwich to have their photograph taken on the line of the Prime Meridian - longitude 0 Degrees - as they stand in the eastern and western hemispheres at the same time.But what is the purpose and history of the Greenwich Meridian? What other points in the world lie along it? And what links the line with navigation, timekeeping and the stars? Find out on this whistle-stop tour from the North Pole, through Greenwich, to France, Spain, Africa and Antarctica, revealing the Greenwich Meridian's fascinating history along the way. Bestandsnummer des Verkäufers LU-9781906367619
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Hardcover. Zustand: new. Hardcover. Every year, thousands of people come to the Royal Observatory in Greenwich to have their photograph taken on the line of the Prime Meridian - longitude 0 Degrees - as they stand in the eastern and western hemispheres at the same time.But what is the purpose and history of the Greenwich Meridian? What other points in the world lie along it? And what links the line with navigation, timekeeping and the stars? Find out on this whistle-stop tour from the North Pole, through Greenwich, to France, Spain, Africa and Antarctica, revealing the Greenwich Meridian's fascinating history along the way. Every year, thousands of people come to the Royal Observatory Greenwich to have their photograph taken on the Prime Meridian Line - Longitude 0 Degrees - as they stand in the Eastern and Western Hemispheres at the same time. But what is the purpose and history of the Greenwich Meridian? Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Bestandsnummer des Verkäufers 9781906367619
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