Sail and Rig Tuning
Sail and Rig Tuning

Author: Ivar Dedekam

Publisher: *Wiley Nautical

Published: 2000-04-07

Total Pages: 84

ISBN-13: 9781898660675

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A guide to tuning the sails and rigs of yachts and small keelboats, featuring step-by-step instructions and more than 150 illustrations.

Bushcraft Illustrated
Bushcraft Illustrated

Author: Dave Canterbury

Publisher: Adams Media

Published: 2019-05-07

Total Pages: 252

ISBN-13: 1507209029

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“An appealing coffee table book.” —The Wall Street Journal From Dave Canterbury—wilderness expert, New York Times bestselling author, and YouTube sensation—comes a fully illustrated guide to everything you need to know to hone your bushcraft, or wilderness survival skills, from types of shelter, to useful tools, to edible plants—and much more! Before you venture into the wilderness, learn exactly what you need to bring and what you need to know with this ultimate outdoor reference guide, by survivalist expert Dave Canterbury. Filled with more than 300 illustrations, Bushcraft Illustrated showcases the necessary tools and skills for an awesome outdoor adventure, including such as: Packs: Learn the different types and how to craft and pack your own. Cordage: Essential knot knowledge for outdoor survival. Firecraft: How to start a fire with a variety of materials. Trapping: Tips for catching small game. Plants: A catalog of edible plants to forage. …And much more! With its many helpful illustrations and detailed, easy-to-follow instructions, this illustrated Bushcraft guide is a must-have for the seasoned outdoor lover and adventure novice alike!

Time and Navigation
Time and Navigation

Author: Andrew Kenneth Johnston

Publisher:

Published: 2015

Total Pages: 225

ISBN-13: 1588344916

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If you want to know where you are, you need a good clock. The surprising connection between time and placeais explored inaTime and Navigation- The Untold Story of Getting from Here to There, the companion book to the National Air and Space Museum exhibition of the same name. Today we use smartphones and GPS, but navigating has not always been so easy. The oldest "clock" is Earth itself, and the oldest means of keeping time came from observing changes in the sky. Early mariners like the Vikings accomplished amazing feats of navigation without using clocks at all. Pioneering seafarers in the Age of Exploration used dead reckoning and celestial navigation; later innovations such as sextants and marine chronometers honed these techniques by measuring latitude and longitude. When explorers turned their sights to the skies, they built on what had been learned at sea. For example, Charles Lindbergh used a bubble sextant on his record-breaking flights. World War II led to the development of new flight technologies, notably radio navigation, since celestial navigation was not suited for all-weather military operations. These forms of navigation were extended and enhanced when explorers began guiding spacecraft into space and across the solar system. Astronauts combined celestial navigation technology with radio transmissions. The development of the atomic clock revolutionized space flight because it could measure billionths of a second, thereby allowing mission teams to navigate more accurately. Scientists and engineers applied these technologies to navigation on earth to develop space-based time and navigation services such as GPS that is used every day by people from all walks of life. While the history of navigation is one of constant change and innovation, it is also one of remarkable continuity. Time and Navigation tells the story of navigation to help us understand where we have been and how we got there so that we can understand where we are going.