Reviews the history of computer science, discusses concepts, and profiles contributors in the field. Also explores the impact of computers on society, with examples in literature and film to illustrate and support trends. Includes illustrations, sidebars, bibliographies, filmographies, timelines, charts, and a glossary. For general audiences.

Includes numerous science experiments and covers key science curriculum fields; astronomy, biology, botany, chemistry, ecology, food science, geology, meteorology and physics. Includes scientific concepts or theories such as, including acid rain, biomes, cells, chemical energy, earthquakes, electricity, greenhouse effect, heat, rocks and minerals, sound, vegetative propagation, weather and more.

This alphabetically organized ten-volume set opens up the entire world of science in clear, nontechnical language. Its 798 entries provide fascinating facts covering the entire spectrum of science, from physical, life, and earth sciences to math, psychology, engineering, technology, and the environment. This edition features 204 new entries and 594 updated entries.

Presents easy-to-understand information on countries and dependencies from around the world. Entries discuss a variety of topics in detail, from banking and securities to climate, from government data to demographic statistics. Also includes biographical essays on national leaders.