Dan Green

The Rock and Gem Book is packed full of photos of natural wonders, including rocks, minerals, gems, shells and fossils. This children's encyclopedia displays more than 1,200 full-color specimens, from sapphires and rubies to silver and pearl, revealing the unique qualities of each material and how it is used in industry, architecture, art and science. Including precious metals, rare fossils, tiny gemstones and giant shells, the Rock and Gem Book gives...

Presents brief explanations of inventions used in our everyday modern lives.

It is the 29th century and the universe of the Human Hegemony is under threat. Invasion by the warlike Ousters looms, and the mysterious schemes of the secessionist AI TechnoCore bring chaos ever closer. On the eve of disaster, with the entire galaxy at war, seven pilgrims set fourth on a final voyage to the legendary Time Tombs on Hyperion, home to the Shrike, a lethal creature, part god and part killing machine, whose powers transcend the limits...

Profiles a variety of dinosaurs, including the iguanodon, parasaurolophus, and tyrannosaurus rex.

Visual guide to the more than 100 elements in the periodic table.

Evolution: The whole story' contains everything you need to know about the development and survival of life on Earth. Each chapter of this accessible and lavishly illustrated book takes a major living group and presents thematic essays discussing the evolution of particular subgroups as they appeared on Earth with reference to detailed comparative anatomy, evolutionary legacies, and the breakthrough theories of eminent scientists. Accompanying the...