Levy, Joel

Makes mathematics accessible by unravelling the evolution of mathematics from its earliest beginnings to the most important modern breakthroughs.

A guide to the arms and armaments that have had the greatest impact on the development of human civilization, describing the "who, where, when, why and how" of their introduction and uses, and explaining their influence in one or more of four categories -- social, political, tactical, and technological.

A collection of scientific questions, explaining how the world works, with detailed answers.

Text and illustrations describe the universe, discussing the senses, planets, human evolution and more.

For centuries, the ninja has occupied a unique place in Japanese culture, straddling the border between fact and folklore. Through classical art, traditional proverbs, and superb research, this exquisitely designed volume takes a look back into the origins and history of these notorious shadow warriors.? Explore their traditions and guiding philosophy, their weapons and martial-arts skills, their mystique as stealthy black-clad assassins, and their enduring appeal as icons of popular culture. A timeline goes back beyond even the very first ninjalike figure, and follows the movement right through the 1800s, when the final ninja mission ever was recorded: the attempt to infiltrate Commodore Perry?s black ships? off Japan.

Briefly profiles secret societies from throughout history, such as the Freemasons, Knights Templar, and Chinese Triad, discussing their histories, beliefs, and rituals.

Introduces children to various places around the world, and offers educational traveling tips.

Tells stories of the origins of a variety of everyday things, including sliced bread, tea bags, the toothbrush, air conditioning, traffic lights, and many others, and features information on the technology and design of the items, as well as the social conditions under which they were created.

An encyclopedia with information on some of the things people are afraid of, listing everything from the most common to the most bizarre phobias.