The Quest for Longitude: The Proceedings of the Longitude Symposium Harvard University, Cambridge, Massachusetts November 4-6, 1993

Rating:
Summary: review
Review: Excellent book focused on the Longitude act's of the 1700's. The primary emphasis is on the two technologies Lunar-distance and chonometer for determining longitude with a precision under 1 degree. The relative percentages are: 50% chonometer, 30% lunar distance, 10% Jupiter's moons, 10% general history pre-1600's. I gave it four stars instead of 5 because I thought the book was going to be a balanced discussion ( i.e. equal time)encompassing all methods of determining longitude irrespective of a 1 degree precision. All that said, I would still recommend the book to anyone interested in the topic.

Rating:
Summary: A must-have
Review: This beautifully presented large hardback is actually a series of essays covering the story of the search for Longitude from the 16th century to the 19th. The essays deal with a range of subjects from the mathematical to the absurd, from astronomy to cartography and has 4 excellent appendices. The book is well laid out with both black&white and color photography in a manner that means you don't need to be a student of the sea of chronology to understand it. A good book to have on the shelf.

Rating:
Summary: Most comprehensive coverage
Review: This review is top notch and comprehensive. It's the book of choice to cover the background and the technology. I'm not a watch or clock fanatic, but I slam dunked this whole book in just a couple days; a 15 hour Qantas flight kept me captive. I wish there was more discussion on the nature of astronomy and how the clocks were calibrated. I want to read up on octants, sextants and basic navigation now. This book deserves five stars. The A&E four hour documentary, "Longitude", this month also deserves high marks. If someone knows of a good read on navigating with astronomy that's more layman oriented, please email me (thanks).