Small inventions that make a big difference / [electronic resource] / photographs by Joseph H. Bailey ; art by John Huehnergarth.. — Washington, D.C. : : National Geographic Society,, c1984.. — 104 p. : : ill. (some col.) ; 28 cm. - Books for world explorers.
Accompanied by "The patent game" (1 sheet [2] p. : col. ill. ; 75 x 49 cm. folded to 25 x 19 cm.). Includes index.
Bibliography: p. 101.
Анотація: Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip.