C Gems

This book studies small but highly captivating artworks from antiquity – engraved gemstones. These objects had multiple applications, and the images upon them captured snapshots of people's beliefs, ideologies, and everyday occupations. They provide a unique perspective on the propaganda of Roman political leaders, especially Octavian/Augustus.

The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.

Graphics Gems V is the newest volume in The Graphics Gems Series. It is intended to provide the graphics community with a set of practical tools for implementing new ideas and techniques, and to offer working solutions to real programming problems. These tools are written by a wide variety of graphics programmers from industry, academia, and research. The books in the series have become essential, time-saving tools for many programmers. Latest collection of graphics tips in The Graphics Gems Series written by the leading programmers in the field. Contains over 50 new gems displaying some of the most recent and innovative techniques in graphics programming. Includes gems covering ellipses, splines, Bezier curves, and ray tracing. Disk included containing source code from the gems available in both IBM and Macintosh versions.

Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering gems, recent statistics have shown that about 15 billion Euros are annually at stake. Nowadays, gemmology, i.e., the study of gem materials, is one of the most expanding fields in the earth sciences, positioned between academia and industry. As an applied science, in gemmology, the instruments used should be non- or microdestructive, and their cost should be reasonable both in terms of equipment and time consumption. Gemmology can also be used contribute to the development of pure science and in some cases, destructive techniques may have to be used. Taking into account the fact that gems are albeit rarely available for scientific research, this compilation of 20 articles by around 100 researchers from over 30 different institutions situated in 20 countries from around the globe, presented in the Special Issue entitled “Mineralogy and Geochemistry of Gems”, offers very good examples on the application of various methods for their study which will hopefully contribute to our better understanding of gem formation in general and will enhance scientific debates attracting more scientists from various disciplines to get involved in this field.

This sequel to Graphics Gems (Academic Press, 1990), and Graphics Gems II (Academic Press, 1991) is a practical collection of computer graphics programming tools and techniques. Graphics Gems III contains a larger percentage of gems related to modeling and rendering, particularly lighting and shading. This new edition also covers image processing, numerical and programming techniques, modeling and transformations, 2D and 3D geometry and algorithms,ray tracing and radiosity, rendering, and more clever new tools and tricks for graphics programming. Volume III also includes a disk containing source codes for either the IBM or Mac versions featuring all code from Volumes I, II, and III. Author David Kirk lends his expertise to the Graphics Gems series in Volume III with his far-reaching knowledge of modeling and rendering, specifically focusing on the areas of lighting and shading. Volume III includes a disk containing source codes for both the IBM and Mac versions featuring all code from volumes I, II, and III. Graphics Gems I, II, and III are sourcebooks of ideas for graphics programmers. They also serve as toolboxes full of useful tricks and techniques for novice programmers and graphics experts alike. Each volume reflects the personality and particular interests of its respective editor. Includes a disk containing source codes for both the IBM and Mac versions featuring code from volumes I, II, and III Features all new graphics gems Explains techniques for making computer graphics implementations more efficient Emphasizes physically based modeling, rendering, radiosity, and ray tracing Presents techniques for making computer graphics implementations more efficient

Over 400,000 Copies in Print Know What You Want, Know What You’re Buying, Learn the Secrets to Get the Most for Your Money Easy to Read Easy to Understand Practical Complete Instant Answers ... to All Your Questions Completely Updated & Expanded 7th Edition! Purchasing gems and jewelry can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewelry confusing, intimidating, overwhelming, and costly. To help you avoid the pitfalls and keep the magic, two internationally respected experts on buying gems and jewelry put their inside knowledge to work for you in this easy-to-read, easy-to-use guide. It is filled with practical advice and is designed to make it easy for you to have all the information you need to buy gems and jewelry with confidence. Recommended by consumer and jewelry trade reviewers around the world, it is already in use in over 100 countries and has been translated into Spanish, Arabic, Greek, Hungarian, Russian and Japanese. Over 400,000 copies are now in print and this revised, updated, expanded edition covers even more: buying and selling on the internet, dazzling new diamond cuts, recently discovered gems ... and new treatments and trickery to look out for. There are fascinating mythical and magical tidbits, and practical tips that could only come from an insider. In simple, straightforward terms you’ll learn about the four Cs and how to juggle them to get what you want, at the price you want to pay; what to look for, and look out for; all about gold and platinum, jewelry design, and some of the country’s leading designers. You’ll learn what questions to ask and what to get in writing, and even how to select the jeweler, appraiser, and insurer. The authors leave no stone unturned to give you everything you need to know—whether you are a novice or a connoisseur. With Jewelry & Gems: The Buying Guide, you’ll find the experience can be a joy, and the gems and jewelry you select a source of lasting pleasure!

"Learn to combine precious gemstones and wire-wrapping techniques to create, beautiful, wearable works of art"--From publisher description.

More C++ Gems picks up where the first book left off, presenting tips, tricks, proven strategies, easy-to-follow techniques, and usable source code.