Clock and how It Changed the World

History and Invention traces the historical development and diverse applications of three key technological innovations -- the clock, the wheel, and the light bulb -- and explores their impact on the course of human history.Laid out in easily accessible, two-page spreads and enhanced by scores of full-color photos, drawings, and maps, each volume supplies clear and vividly illustrated answers to the questions young people have about the technology they use every day.This invention not only made possible such things as mass production and reliable travel but altered the very structure of everyday work and leisure.Pollard, Michael is the author of 'Clock and how It Changed the World', published 1995 under ISBN 9780816031429 and ISBN 0816031428.