The Sumner Line
George Cary Comstock
Broschiertes Buch

The Sumner Line

Or Line Of Position As An Aid To Navigation (1919)

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The Sumner Line: Or Line Of Position As An Aid To Navigation (1919) is a book written by George Cary Comstock. This book is a comprehensive guide to navigation and the use of the Sumner Line, which is a method of determining a ship's position at sea. The Sumner Line is a navigational technique that uses the angle between the horizon and a celestial body, such as the sun or a star, to determine the ship's position. The book provides a detailed explanation of the mathematical principles behind the Sumner Line and how it can be used to navigate at sea. It also includes practical examples and illu...