Authoritative and extensive coverage of all disciplines in science and engineering are provided in this work of 20 volumes, including 13,000 illustrations.
Every entry begins with a definition and then provides a brief overview of the subject.
The article goes on to develop the subject in a concise yet comprehensive manner, thus providing information on levels appropriate for different audiences. Covering all areas of the physical sciences and engineering, this 30 volume work provides articles of sufficient length to adequately cover a discipline. The level of the audience is intended to be a knowledgeable one. This tells the story of human inventions from the stone ax to space craft, in a concise manner. In context, this work tells what happened in science and technology, when it happened, and who made it happen for 10,000 separate events.