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by George Adams (Author)
How to navigate using 18th-century instruments. George Adams was the mathematical instrument maker to the King of England and the optician to the Prince of Wales. Utilizing simple scientific truths, Adams describes how to find the longitude and latitude of any location, how to ascertain the sun's declination, how to construct a sundial, how to determine the coordinates of a comet, how to plan for winter or summer solstices, and much more.
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Originally published in 1766, An Essay on the Use of the Celestial and Terrestrial Globes can help you find the longitude of wherever you are or tell the time of day without using a watch. Utilizing simple scientific truths, George Adams describes how to construct a sundial, ascertain the sun's declination, determine the coordinates of a comet, plan for winter or summer solstices, and much more. His studies exemplify the general principles of navigation and are explained here in a series of astronomical and geographical essays and instructions.
The book is as useful to the contemporary reader seeking knowledge of basic scientific principles as it is to the astronomy, navigation, or geography student or hobbyist desiring a comprehensive and methodical handbook.
George Adams was the mathematical instrument maker to the king of England and the optician to the Prince of Wales.
