Books in Our Changing World--The Timeline Library. series

Looks at ways of telling time from ancient sundials, hourglasses, and water clocks to mechanical, solar, and atomic clocks.

Explores the advances made in electronic verbal communication, from Bell's early invention to the 1.3 billion cell phones in use today.

Traces the history, development, and future of the automobile from the gasoline powered Oldsmobile Runabout in 1904 to the hybrids of the early twenty-first century.

Explores the history of the written word, still an important means of communication, from cuneiform tablets to personal computers and text messaging.

Traces the development of the airplane, from the study of flight through kites, hot air balloons, gliders, and blimps to the application in passenger, commercial, and military operations.

Examines the history and advancements made in the field of manned space flight and exploration of the solar system.