Non-bird dinosaurs (“dinosaurs”) are very much in the news these days: dinosaurs had feathers; dinosaurs were warm-blooded; dinosaurs were snuffed out in mere seconds; we’ve just discovered the largest dinosaur ever; we’ve just discovered the smallest dinosaur ever; here is Jurassic World, there is The Good Dinosaur. . . it’s a media blizzard. And why not? Ideas about dinosaurs have moved conceptually far beyond the twentieth century: a few weirdo reptiles that lived on this planet, but were too stupid to survive. Today dinosaurs are recognized as centerpieces of vertebrate evolution; they’re just a whole lot more interesting than they used to be!

We live in a golden age of paleontological discovery—on average, we fi nd one new dinosaur species per week. The most fascinating among them take their place in this updated edition of Dinosaurs—The Grand Tour, from Aardonyx, a lumbering beast that formed a link between two- and four-legged dinosaurs, to Zuniceratops, who boasted a deadly pair of horns.

Here, you’ll fi nd everything worth knowing about every dinosaur worth learning about—more than three hundred in all. At-a-glance sidebars put each dinosaur’s diet, size, and where they roamed at your fi ngertips. Stories of harrowing expeditions conjure the thrills of history’s most famous dinosaur hunters. Highlights from recent research reveal what’s new in paleontology today, including scientists’ evolving ideas of what dinosaurs actually looked like. (Hint: They were more colorful—and feathery!—than we thought before.) And illustrations on virtually every page bring these prehistoric creatures to life in all their glory.

Plus, renowned paleontologist Jack Horner contributes “fi eld notes” to help readers set out on their own expeditions—from seeking fossilized footprints at his recommended sites to planning a cross-country road trip using his list of top North American dinosaurs as a map. You’ll learn what it’s like to be part of the most sensational dino-discoveries ever—and maybe make some of your own!

Many problems in engineering geology are fundamentally problems in three dimensional geometry. Spherical projection is a time t€sted technique by means of which complex and arbitrary orientation problems can be solved manually with relative ease. ln spite of rapid developmens in computing hardware, no analytical software has been created which seems capable of adequately replacing spherical projectioo techniques. Therefore, maDy attempts have been made to computerize ihis method. The majority of these attemPts have resulted in programs which are static and inllexible in nature. DIPS, a program which was developed as the main compoDent of this wor! duplicates, on the comPuter, the flexibility, graphical visualization potential and interactive nature of the original spherical projection tecbniques

Модели прочности на сдвиг в двухмерном и трехмерном измерениях для оценки устойчивости анизотропных горных склонов в регионе Пилбара в Западной Австралии.

The bedded iron ore and gold deposits in the Pilbara Region of Western Australia are hosted in highly anisotropic rock masses. For iron ore, these comprise strong banded iron formations discretely interbedded with very weak shales. Gold and other precious metals deposits in the same region are hosted by interbedded siltstones, sandstone and quartzites. Slope instability mechanisms generally involve sliding along bedding planes combined with joints or faults acting as release planes.