Sundials: History, Theory, and Practice

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Dover Publications #ad - 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.

In this expert study, a noted sundial expert offers a fascinating and informative account of these ancient devices, presented in simple, lively language. Over the centuries, many different varieties of sundials have been constructed, and Mr. 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.

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. Among the earliest instruments developed for telling time was the sundial. Rohr provides detailed, analemmatic dials, accurate descriptions of them all: classical sundials, solar calendars, moon dials, inclined dials, and many more.

His lively pen, his direct and simple style, his expressive vocabulary, his avoidance of pedantry, 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.

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Sundials: Their Theory and Construction

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Dover Publications #ad - There are over 100 illustrations, charts, and tables, followed by an appendix which is filled with material which reduces or eliminates the need for calculation on the part of the reader. 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.

Albert E. But now your search is over. All the common types of dials are covered, polar dials, but the reader can also learn about analemmatic dials, armillary spheres, portable dials, reflected ceiling dials, equatorial dials, memorial dials, cross dials, and old-fashioned noon marks. This book is designed to meet sundialing needs at either the simple or the sophisticated level.

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. There are also sections on dial furniture, 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, the equation of time, how to find the meridian, mottoes, the actual layout out of a dial, finding time in other cities, or any place in the world.

Sundials: Their Theory and Construction #ad - The author has designed many dials, and his text is filled with helpful hints based on his own personal experience. Waugh, and an expert on the subject of sundials and their curious history, a rigorous appraisal of the science of sundials, 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, professor and administrator at the University of Connecticut for 40 years, on the one hand, including mathematical treatment and an explanation of the pertinent astronomical background; on the other hand, presents, each covering a different aspect of dialing science.

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Sundials: Their Construction and Use

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Dover Publications #ad - Readers will also find fascinating chapters on dial furniture, constructing a heliochronometer a highly precise solar timekeeper, sundial classification, portable sundials, and other topics. 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.

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. Nothing could be farther from the truth. 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. It simplicity and accuracy, together with the ease and quickness of delineation, make it very practical. Introductory chapters offer a wealth of information on the sundial's development from ancient times to the present, why the sundial tells time, how to design and make a dial, and more. Accompanying the text are 150 well-chosen illustrations, many published for the first time.

Sundials: Their Construction and Use #ad - The use of this method doesn't require a knowledge of mathematics or astronomy. They depict scale models, and other actual dials from around the world, including the world's largest, in Jaipur, a cathedral dial, as well as a moon dial, India. To many people, the construction of a sundial implies laborious mathematical calculations and a knowledge of astronomy.

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Easy-to-Make Wooden Sundials Dover Woodworking

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Dover Publications #ad - Pre-calculated templates can be removed from the book and transferred by carbon paper to wood. Ultimately, one can design a working pocket sundial! tables are included for four different latitudes 25º, 32º, 45º, 40º, applicable throughout the United States and much of North America. A table of more than one hundred cities gives latitude, magnetic variation, zone, longitude, time, and the necessary time adjustments.

. Here is the guide. A bibliography and a list of sundial mottoes complete this comprehensive beginning manual. The book gently leads beginning diallists into sundial lore and construction. A special section is given to dial correction; the equation of time, longitude, magnetic variation, hour angles. Gnomonics is to the scientific what the Art of Dyalling is to antiquaries: both refer to the art, science, and craft of sundials.

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

For beneath and behind the shadows on the dial operate principles of celestial mechanics, trigonometry, geography, and magnetism. But can a sundial be built with this knowledge? Yes, with proper guidance, in fact, a good deal of sundial science can be learned in the making. Illustrated step-by-step instructions show how to build these sundials: Horizontal; Direct South Vertical; Folding Equatorial; Bowstring Equatorial; and Diptych.

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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 - 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. These 18 projects fall roughly into three categories: decorative, useful, and somewhere in between. The cross-staff falls somewhere in between, equally at home in the den or the ditch kit.

Latitude hooks and azimuth Rings is for people who like to work with their hands and who appreciate traditional nautical craftsmanship. Each of the devices discussed here--with simple, historic value, and each is worth reviving for its beauty, proven building instructions complemented by clear illustrations--has at one time or another been used for the practical business of navigation, or sheer usefulness.

Latitude Hooks and Azimuth Rings: How to Build and Use 18 Traditional Navigational Tools #ad - Some, such as the astrolabe, are mainly for display. 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. Everything can be scratch-built using easily obtainable materials and tools, and each is true to the spirit and function of the original instrument.

Dennis fisher has designed these projects with an emphasis on simplicity and reasonable cost.

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Sundials: Design, Construction, and Use Springer Praxis Books

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Praxis #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. Most of these designs have been tested by people with no previous knowledge of astronomy. 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.

To aid the reader, the book is full of clear and instructive illustrations and diagrams. 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. 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 - Sundials, and elegant gardens, public plazas, which decorate church walls, are first and foremost astronomical instruments.

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Sundials: History, Art, People, Science

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Frances Lincoln #ad - As objects that perform a function, yet require no power and perform indefinitely, they are a powerful symbol of endurance and permanence. This history is in effect the story of Man's understanding of the heavens, and his own place in the cosmos. 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.

It includes a glossary of terms, bibliography and an appendix explaining some of the theory and mathematics. Rich in cultural and religious significance, sundials represent the coming together of art and astronomy. Sundials are arguably the oldest of all scientific instruments. Mark lennox-boyd describes in detail the main types of sundial, Indian and Chinese sundials, Syrian, describing important historical examples, such as Emperor Augustus's Sundial on the Campus Martius in Rome, and showcasing a range of stunning modern sundials that have been inspired by them.

Sundials: History, Art, People, Science #ad - Sundials combines images of inspirational designs with a fascinating historical narrative. The story has a colourful cast of characters, alchemists, including artists, two emperors, a maharajah and the founding President of the United States of America. Their beauty is often a reflection of great craftsmanship, as well as a design statement that is highly ordered and rational.

Used book in Good Condition.

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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 - By its shadow you cn read correct clock time, rotation, and also observe the effects of the earth's tilt, and changing orbital speed. It is simple and inexpensive to make a clock-accurate sundial, and superior to mass produced sundials. During his long career as a science teacher and educator, Mr. Sam muller's modern sundial is an amazing scientific tool.

Muller has inspired many young minds with the wonders of science. 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.

Making a Clock-Accurate Sundial Customized to Your Location for the Northern Hemisphere #ad - Used book in Good Condition.

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A History of Greek Mathematics, Vol. 1: From Thales to Euclid

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Dover Publications #ad - The linkage and unity of mathematics and philosophy suggest the outline for the entire history. Heath covers in sequence greek numerical notation, plato, thales and Pythagorean geometry, Pappus, Archimedes, Hipparchus and trigonometry, Ptolemy, Euclid, Apollonius, Zeno, Aristarchus, Heron, Pythagorean arithmetic, Diophantus of Alexandria and the algebra.

As it is, indeed, the book is indispensable; it has, no serious English rival. Times Literary Supplement. The coverage is everywhere thorough and judicious; but heath is not content with plain exposition: It is a defect in the existing histories that, and the main propositions proved in, while they state generally the contents of, the great treatises of Archimedes and Apollonius, they make little attempt to describe the procedure by which the results are obtained.

Historians of greek culture and science can renew acquaintance with a standard reference; readers in general will find, particularly in the energetic discourses on Euclid and Archimedes, exactly what Heath means by impressive and awe-inspiring. Used book in Good Condition. Heath read the original texts with a critical, scrupulous eye, and brought to this definitive two-volume history the insights of a mathematician communicated with the clarity of classically taught English.

A History of Greek Mathematics, Vol. 1: From Thales to Euclid #ad - . Interspersed are sections devoted to the history and analysis of famous problems: squaring the circle, duplication of the cube, angle trisection, and an appendix on Archimedes' proof of the subtangent property of a spiral. Of all the manifestations of the Greek genius none is more impressive and even awe-inspiring than that which is revealed by the history of Greek mathematics.

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