Search -
Small Inventions That Make a Big Difference (Books for World Explorers)
Small Inventions That Make a Big Difference - Books for World Explorers Author:Joseph H. Bailey (Photographer), John Huehnergarth (Illustrator), Donald J. Crump (Editor) 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.