20th Century Inventions
2 primary works • 3 total works
Book 4
Presents an overview of many of the medical methods and treatments used to prevent diseases, relieve pain, and treat illnesses as they have developed particularly in the twentieth century.
Book 8
Describes the development of computers, their various components, and uses for entertainment, education, business, and other facets of life.
Discusses the history and development of man-made satellites, from the launch of Sputnik 1 to the current use of satellites for communication, navigation, weather forecasting, and military purposes.