What would happen if the frozen Arctic completely melted? Certain plants and animals rely on the dry and cold tundra environments. The tundra habitat includes both the flat regions of the Arctic and the alpine heights of  mountains. This habitat acts as a source of food and a climate suitable for the plants and animals that live there. Learn about the geography and resources of tundra habitats as well as how animals and people have adapted to and changed tundra environments. Explore this habitat's future and what people can do to help keep it safe.

A touchstone in Western debates about society and government, the "Politics" is Aristotle's classic work on the nature of political community. Here, he argues that people band together into political communities to secure a good and self-sufficient life. He discusses the merits and defects of various regimes or ways of organizing political community--democracy in particular--and in the process examines such subjects as slavery, economics, the family, citizenship, justice, and revolution.

Peter Simpson offers a new translation of Aristotle's text from the ancient Greek. He renders the "Politics" into an English version that is accurate, readable, and in certain difficult passages, original. His innovative analytical division of the whole text, with headings and accompanying summaries, makes clear the progression and unity of the argument--a helpful feature for students or readers unfamiliar with Aristotle's studied brevity and often elliptical style. Books 7 and 8 are repositioned--a move supported by Aristotle's own words and much scholarly opinion--to restore the work's logical organization and coherence. Finally, Simpson places the "Politics" in its proper philosophical context by beginning the text with the last chapter of Aristotle's "Nicomachean Ethics," which he sees as an introduction to what follows.

You may have heard of Thomas Edison or Alexander Graham Bell. But have you ever heard of Hedy Lamarr or Bi Sheng? Without Hedy Lamarr, we wouldn't have wireless technology. Without Bi Sheng, we wouldn't have printed books! Learn about eight important inventors and how their inventions have shaped the world we live in today.

The "Politics," Aristotle's classic work on the nature of political community, has been a touchstone of Western debates about society and government. Here, Peter Simpson presents a thorough analysis of the logical structure of the entire text and each of its constitutive arguments and conclusions. A valuable commentary on the philosophical argument in the "Politics," the book will also serve as a sound basis for future study of Aristotle's political thought.