Describes the water cycle, explains how hydroelectric energy is produced, and discusses world water use, steam as a power source, wave power, tidal power, hydrogen fuel cells, and future water energy.
Explains how the sun produces energy and how sunlight is changed into electricity using solar cells, and describes solar power plants and solar panels, solar power in space, solar heat energy, the use of solar energy in nature, biomass energy, and the future of solar energy.
Describes how oil and natural gas formed hundreds of millions of years ago; how they are drilled and transported; and how they are used for fuel, industry, and plastics; and discusses pollution and conservation.
Explains how nuclear energy was developed, discussing the splitting of the atom, and describes different types of reactors, nuclear energy pros and cons, disasters such as Chernobyl, nuclear weapons, and nuclear energy as a resource in the future.
Describes how coal was formed hundreds of millions of years ago; how it is mined and transported; and how it is used for power, industry, and consumer products; and discusses pollution and conservation.
Explores the invention of telegraphy, early experiments with radio, and inventions for storing sound and discusses how these developments impacted American history and society.
Captures the life and times of Orville and Wilbur Wright, two brothers whose interest in aviation prompted them to build the world's first power-driven airplane.
Describes the history of some of the most influential and familiar inventions such as the printing press, radio, and television, as well as some of the world's great inventing disasters.
