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The Riddle of the Compass: The Invention That Changed the World
 
 
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The Riddle of the Compass: The Invention That Changed the World (Hardcover)
by Amir D. Aczel (Author) "I FIRST BECAME INTERESTED IN THE COMPASS WHEN I was a child..." (more)
Key Phrases: sixteen directions, twelve winds, magnetic compass, Marco Polo, Flavio Gioia, Middle Ages (more...)
  3.5 out of 5 stars 46 customer reviews (46 customer reviews)  


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Editorial Reviews
From School Library Journal
Adult/High School-Prior to the invention of the compass, a merchant or sailor who wished to cross a large body of water was forced to navigate by studying the winds and stars or by never sailing out of the sight of land. Long ocean voyages were impossible and even sailing the Mediterranean could be a lengthy and hazardous voyage. The compass changed all of this. Mariners could now strike out on an azimuth and have a reasonable chance of arriving at their destination. This led to the Age of Exploration and the expansion of the European kingdoms into economic empires. Yet as important as the compass is, its origins are shrouded in mystery. The small town of Amalfi, Italy, claims to be the birthplace of the inventor of the compass, but China has an even stronger case. Aczel examines the myths, legends, and facts behind the dispute and provides a logical, although not indisputable, conclusion on which nation can claim the compass as its own. He also provides a layman's overview of the development of navigation from the earliest days to the 15th century. Although the author is primarily known for his scientific books, Riddle of the Compass contains little or no jargon and a minimum of scientific terminology. A worthwhile and interesting addition.

Robert Burnham, R. E. Lee High School, Springfield, VA

Copyright 2002 Cahners Business Information, Inc.



From Library Journal
Despite its brevity, this book covers its topic completely. In this detailed history, Aczel (God's Equation; Bentley Coll.) takes us back in time to Amalfi, Italy, where between 1295 and 1302 the compass as we know it was developed. Aczel points out, however, that the actual discovery of materials that followed magnetic lines, or at least consistently pointed in a specific direction (south), is attributed to the Chinese in 1040. The story of the compass is also the story of navigation, which the author admirably combines. Debunking the myth that sailors followed the coastlines of countries until they met their desired location, the author describes how they navigated the open seas using the sun, stars, wind, and even the migration of birds. While this book is not a page-turner, it is an accurate account of the important historical events that lead to the compass's development. Tellingly, Aczel grew up on a ship and was navigating straits in the Mediterranean long before he could drive a car. Recommended for public as well as academic libraries whose readers want to go beyond the account generally given in an encyclopedia.
- James Olson, Northeastern Illinois Univ., Chicago
Copyright 2001 Reed Business Information, Inc.

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Product Details
  • Hardcover: 200 pages
  • Publisher: Harcourt; 1st edition (August 16, 2001)
  • Language: English
  • ISBN-10: 0151005060
  • ISBN-13: 978-0151005062
  • Product Dimensions: 8.1 x 5.7 x 0.8 inches
  • Shipping Weight: 14.1 ounces
  • Average Customer Review: 3.5 out of 5 stars 46 customer reviews (46 customer reviews)
  • Amazon.com Sales Rank: #423,742 in Books (See Bestsellers in Books)

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Amir D. Aczel's latest blog posts
       
 
Amir D. Aczel sent the following posts to customers who purchased The Riddle of the Compass: The Invention That Changed the World
 
3:31 PM PST, February 13, 2007
The French literary magazine Lire reviewed my book Descartes' Secret Notebook in its February 2007 issue, and said that in this book I inaugurated a new literary genre: the "Philosophical-Historical Thriller."  The entire review (in French) is given below.
*******************************************
Quand Descartes perça le secret de l'espace

par Jean Montenot
Lire, février 2007
 Un thriller sur fond de génie mathématique et de philosophie: passionnant et très instructif!
Comment réviser son Descartes, l'homme, le savant et le philosophe, sans s'ennuyer, ni avoir le sentiment de retourner à l'école? Réponse: en lisant Le carnet secret de Descartes du mathématicien américain Amir Aczel, un «thriller philosophico-historique» d'un genre nouveau. L'ouvrage tient de l'enquête policière, de la biographie (légèrement romancée pour les besoins de l'intrigue) et du récit historique. Le fil conducteur est un petit carnet de seize pages, couvert de signes cabalistiques, apparemment incompréhensibles, et que Leibniz, bien après la mort de Descartes, est parvenu à déchiffrer. Le thriller retrace la vie de Descartes, décrit les stratégies des savants de l'époque pour échapper aux attaques des autorités cléricales des différentes confessions. Il conduit au cœur de la confrérie secrète de la Rose-Croix. Grâce à lui, on saisit bien l'importance de Descartes: à la fois celle d'un génie mathématicien en avance sur son temps et celle d'un philosophe révolutionnant la manière de penser. Il montre aussi combien cet homme est encore dépendant de l'esprit de la Renaissance et de la tendance à se représenter la science comme un code dont la fonction serait de déchiffrer la vérité du monde.
Qu'y avait-il donc dans ce carnet, secret car codé, retrouvé dans les papiers de Descartes? Entre autres, la découverte d'une propriété des cinq solides réguliers, propriété découverte au siècle suivant par le mathématicien suisse Euler. Une propriété en fait valable pour presque tous les solides à trois dimensions et de l'espace lui-même: l'addition des faces et des sommets moins les arrêtes est toujours égale à deux (F+S-A = 2). La belle affaire! direz-vous. Mais ce faisant, Descartes avait préparé, sans le savoir, la première découverte de la topologie future, une branche dont l'objet est l'étude des déformations de l'espace. Le livre respecte la vérité historique (rien à voir avec les fantaisies du Da Vinci Code), même si çà et là on peut sentir combien, aux yeux d'un Américain, le XVIIe siècle français recèle quelque chose d'un peu mystérieux, presque de médiéval.
 
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7:14 AM PST, January 2, 2007
Dear Friends,
I just finished the manuscript for my new book.  I began work on this book in China in the summer of 2005, when I visited the Peking Man site--the place 25 miles southwest of Beijing at which fossils of "the missing link" were found in 1929.  Several skulls and bones dated to 500,000 years ago were discovered here and recognized as belonging to the human ancestor named Homo erectus.  This was a hominid found in Africa and in Asia that predates the Neanderthals and modern humans.  My book describes this amazing discovery by an international team of scientists, which included the enigmatic figure of Pierre Teilhard de Chardin--a Jesuit priest who was also a mystic and a renowned paleontologist.  Teilhard remained a devout Jesuit all his life, but he also believed in evolution.  The Jesuits exiled him to China for his views on evolution, which he often expressed publicly.  As fate would have it, he arrived in China just in time to take part in one of the most important discoveries in support of evolution.  The title of the book is "The Jesuit and the Skull," and it will appear in September of 2007.
Best