Sundials: Their Theory and Construction

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Dover Publications #ad - All the common types of dials are covered, memorial dials, reflected ceiling dials, portable dials, polar dials, armillary spheres, equatorial dials, cross dials, but the reader can also learn about analemmatic dials, and old-fashioned noon marks. There are over 100 illustrations, and tables, charts, followed by an appendix which is filled with material which reduces or eliminates the need for calculation on the part of the reader.

This book is designed to meet sundialing needs at either the simple or the sophisticated level. There are also sections on dial furniture, mottoes, finding time in other cities, how to find time by moonlight — even how to estimate time from the length of one's own shadow! Directions are given for designing dials for any part of the country, how to find the meridian, the actual layout out of a dial, the equation of time, or any place in the world.

Most books on the subject are either rare out-of-print works published centuries ago and available only in highly specialized collections, or highly complicated treatises whose information is hidden behind frightening arrays of involved formulas. But now your search is over. Have you every wanted to build a sundial or to understand how one works? Then you have probably been frustrated as you search vainly for help.

Sundials: Their Theory and Construction #ad - Albert E. The author has designed many dials, and his text is filled with helpful hints based on his own personal experience. Waugh, he presents simple and non-technical treatments such that several of the dials can be built by children!The subject matter is arranged in 19 chapters, on the one hand, and an expert on the subject of sundials and their curious history, professor and administrator at the University of Connecticut for 40 years, presents, including mathematical treatment and an explanation of the pertinent astronomical background; on the other hand, a rigorous appraisal of the science of sundials, each covering a different aspect of dialing science.

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Easy-to-Make Wooden Sundials Dover Woodworking

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Dover Publications #ad - For beneath and behind the shadows on the dial operate principles of celestial mechanics, geography, trigonometry, and magnetism. Pre-calculated templates can be removed from the book and transferred by carbon paper to wood. A special section is given to dial correction; the equation of time, longitude, magnetic variation, hour angles.

Illustrated step-by-step instructions show how to build these sundials: Horizontal; Direct South Vertical; Folding Equatorial; Bowstring Equatorial; and Diptych. Ultimately, 40º, 45º, one can design a working pocket sundial! Tables are included for four different latitudes 25º, 32º, applicable throughout the United States and much of North America.

A table of more than one hundred cities gives latitude, zone, magnetic variation, time, longitude, and the necessary time adjustments. The sundial, the oldest mechanical clock, is also the truest — when properly set and corrected it is more accurate at its longitude than modern "standard" time clocks.

Easy-to-Make Wooden Sundials Dover Woodworking #ad - But can a sundial be built with this knowledge? Yes, in fact, with proper guidance, a good deal of sundial science can be learned in the making. Gnomonics is to the scientific what the Art of Dyalling is to antiquaries: both refer to the art, science, and craft of sundials. Here is the guide. A bibliography and a list of sundial mottoes complete this comprehensive beginning manual.

Novice craftsmen who can wield a saw, wood-burning pen, and a few other simple tools can make five different kinds of sundials; plans are flexible and allow for embellishment, sandpaper, alteration, matte knife, and variety of materials.

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Sundials: Their Construction and Use

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Dover Publications #ad - To many people, the construction of a sundial implies laborious mathematical calculations and a knowledge of astronomy. Accompanying the text are 150 well-chosen illustrations, many published for the first time. If you've ever wanted to build your own sundial, or if you simply want to know more about these ancient timepieces that can show the time of day as accurately as many clocks, this clearly written, easy-to-follow guide is "the best book available.

Commonweal. Introductory chapters offer a wealth of information on the sundial's development from ancient times to the present, how to design and make a dial, why the sundial tells time, and more. Readers will also find fascinating chapters on dial furniture, sundial classification, constructing a heliochronometer a highly precise solar timekeeper, portable sundials, and other topics.

Sundials: Their Construction and Use #ad - These chapters are followed by full instructions on how to construct the hour lines for many kinds of sundials, by the graphic or geometric method. It simplicity and accuracy, together with the ease and quickness of delineation, make it very practical. They depict scale models, a cathedral dial, in Jaipur, and other actual dials from around the world, including the world's largest, as well as a moon dial, India.

Nothing could be farther from the truth. This fascinating handbook, used in conjunction with ordinary tools and materials found around the home, makes it easy to design and construct a sundial on almost any surface and in virtually any position.

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Sundials: History, Theory, and Practice

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Dover Publications #ad - No special knowledge is required, other than an understanding of the basic principles of cosmography and of the relative movements of the sun and the planets. His lively pen, his avoidance of pedantry, his direct and simple style, his expressive vocabulary, his conciseness in the exposition of his thoughts make his book a pleasure to read.

Henri michel, international academy of the History of ScienceThe story of man's efforts to measure time is a long one — reaching back thousands of years to the dawn of civilization. In this expert study, presented in simple, a noted sundial expert offers a fascinating and informative account of these ancient devices, lively language.

Over the centuries, many different varieties of sundials have been constructed, and Mr. There is even a chapter devoted to especially remarkable dials past and present, and a listing of the most popular sundial mottoes. In this profusely illustrated volume, you will not only learn about the long and colorful history of the sundial, you will learn a practical method of building one yourself.

Sundials: History, Theory, and Practice #ad - These are recalled in an elementary way in a special chapter. For mathematically inclined readers, more complex formulae and calculations have been included, some of which have never been printed in a book of gnomonics. Rohr provides detailed, moon dials, accurate descriptions of them all: classical sundials, inclined dials, analemmatic dials, solar calendars, and many more.

Among the earliest instruments developed for telling time was the sundial.

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Latitude Hooks and Azimuth Rings: How to Build and Use 18 Traditional Navigational Tools

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International Marine/Ragged Mountain Press #ad - Each of the devices discussed here--with simple, proven building instructions complemented by clear illustrations--has at one time or another been used for the practical business of navigation, and each is worth reviving for its beauty, historic value, or sheer usefulness. Some, such as the astrolabe, are mainly for display.

You don't have to be the master of any craft to undertake any of these projects--from a simple kamal or latitude hook to the more complex pelorus or octant--just a careful and enthusiastic worker. The cross-staff falls somewhere in between, equally at home in the den or the ditch kit. Dennis fisher has designed these projects with an emphasis on simplicity and reasonable cost.

Latitude Hooks and Azimuth Rings: How to Build and Use 18 Traditional Navigational Tools #ad - These 18 projects fall roughly into three categories: decorative, useful, and somewhere in between. Everything can be scratch-built using easily obtainable materials and tools, and each is true to the spirit and function of the original instrument. On the other hand, the sounding line is an important and practical tool for small-craft navigation, particularly in the absence of an electronic sounder.

Latitude hooks and azimuth Rings is for people who like to work with their hands and who appreciate traditional nautical craftsmanship.

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Sundials: Design, Construction, and Use Springer Praxis Books

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Praxis #ad - The practical and observational aspects of sundials will enable readers to create custom-made sundial of their own, adding whatever special features they wish to include. In this book, denis savoie presents the basics of astronomy required to understand sundials and describes how to design and build your own classical sundial.

. To aid the reader, the book is full of clear and instructive illustrations and diagrams. Sundials, and elegant gardens, which decorate church walls, public plazas, are first and foremost astronomical instruments. Most of these designs have been tested by people with no previous knowledge of astronomy. Before understanding how sundials work, one must first understand the apparent motion of the Sun in the sky.

Sundials: Design, Construction, and Use Springer Praxis Books #ad - Written for all levels of science readers, the author shows the calculations involved in the sundial’s construction and also gives a comprehensive history of time measurement.

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Making a Clock-Accurate Sundial Customized to Your Location for the Northern Hemisphere

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Naturegraph Publishers, Inc. #ad - Sam muller's modern sundial is an amazing scientific tool. Then on a moonlit night from the shadow cast on your now "moondial" you will notice the moon's counterclockwise orbit of the earth shows a small loss of time hour after hour, explaning why a lunar month is more than a day shorter than a solar month.

By its shadow you cn read correct clock time, and also observe the effects of the earth's tilt, rotation, and changing orbital speed. During his long career as a science teacher and educator, Mr. Muller has inspired many young minds with the wonders of science. It is simple and inexpensive to make a clock-accurate sundial, and superior to mass produced sundials.

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Sundials: History, Art, People, Science

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Frances Lincoln #ad - Their beauty is often a reflection of great craftsmanship, as well as a design statement that is highly ordered and rational. Mark lennox-boyd describes in detail the main types of sundial, such as Emperor Augustus's Sundial on the Campus Martius in Rome, describing important historical examples, Syrian, Indian and Chinese sundials, and showcasing a range of stunning modern sundials that have been inspired by them.

Sundials are arguably the oldest of all scientific instruments. Sundials combines images of inspirational designs with a fascinating historical narrative. It includes a glossary of terms, bibliography and an appendix explaining some of the theory and mathematics. Used book in Good Condition. This history is in effect the story of Man's understanding of the heavens, and his own place in the cosmos.

Sundials: History, Art, People, Science #ad - As objects that perform a function, yet require no power and perform indefinitely, they are a powerful symbol of endurance and permanence. The story has a colourful cast of characters, including artists, two emperors, alchemists, a maharajah and the founding President of the United States of America. This copiously illustrated book charts the evolution of sundials around the world from the earliest neolithic rondels and stone circles, such as Stonehenge, to the present day.

. Rich in cultural and religious significance, sundials represent the coming together of art and astronomy.

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Celestial Navigation: A Complete Home Study Course, Second Edition

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Starpath Publications #ad - 176-177. Bowditch, american Practical Navigator, NGA Pub 9. Celestial navigation A Complete Home Study Course Second Edition. We have also updated the electronic navigation section, as most ocean navigators will also be using other tools besides celestial. Each section has been updated and reformatted for a clearer presentation, often in response to student questions over the years.

2015, second edition seattle, Celestial Navigation, Starpath Publications pp. More than 20, 000 students have successfully learned ocean navigation from these materials and gone on to cross oceans or circumnavigate the globe. This book covers how to find position at sea from timed sextant sights of the sun, and planets plus other routine and special procedures of safe, moon, stars, efficient offshore navigation.

At the end of this book, you will be ready for ocean navigation. The book includes: text, detailed glossary, practice problems, tables selections, and full solutions. It has not changed, so we do not benefit in any way from making all new examples, which would bring with them more chance of error in a book of many numbers.

Celestial Navigation: A Complete Home Study Course, Second Edition #ad - We have, however, notably improved and expanded the book. Printable work forms, plotting sheets, and other resources are available at no charge from starpath. Com/celnavbook. Our fit-slope method presented in this textbook is cited in the latest 2017 edition of Bowditch:"The common method of averaging sights is the Fit-Slope Method, e.

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Sundials: history, theory and practice

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University of Toronto Press #ad - Used book in Good Condition. Celestial navigation A Complete Home Study Course Second Edition.

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The Sextant Handbook

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International Marine/Ragged Mountain Press #ad - Loran and gps notwithstanding, there will always be a place for the sextant aboard any blue-water boat, if for no other reason than the thrill and mystery of finding one's position on earth by gazing at the heavens. Used book in Good Condition. The sextant handbook is dedicated to the premise that electronic navigation devices, while too convenient to disregard, are too vulnerable to rely on exclusively.

Bruce bauer, a professional navigator and master mariner with the U. S. All in a thoroughly revised edition of a book acclaimed by navigation professionals. The book is designed to make beginner and expert alike conversant with this most beautiful and functional of the navigator's tools. Here is the indispensable reference that should accompany the instrument aboard.

The Sextant Handbook #ad - International Marine Publishing. Merchant marine, adjusting, using, has distilled years of hands-on experience into an eminently readable guide to buying, and repairing sextants. Cmdr. Topics include: assembly and disassembly vital adjustments avoiding problems rough weather Sightings Oiling and Cleaning Immersion Baths Emergency Silvering Finding and Buying Used Sextants And Much More You'll also find a list of distributors, and numerous helpful hints, a discussion of future trends, manufacturers, and dealers worldwide, including sighting with eyeglasses and using a Rude starfinder.

Celestial navigation A Complete Home Study Course Second Edition.

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