Describes the background and context of America's homeland security using information from the three basic parts of the system: intelligence, law enforcement, and funding.
Illustrations and simple text provide a brief introduction to the history of trains, discussing when they were first invented, how they have been used throughout the years, and the role they played in the development of the United States.
Takes a look at the current state and future of the field of robotics, emphasizing that robots are already playing an important role in making our lives easier.
Describes the history, design and construction, components, and future of aircraft carriers, and discusses such famous ones as the USS "Saratoga" and "Enterprise.".