books.google.com - Imagine your average day without zippers, airplanes or vacuum cleaners, without your clock radio or your personal stereo, without photocopiers. All of these devices were invented within the last hundred years and have since transformed our daily landscape. Drawing on The British Library's vast and comprehensive...http://books.google.com/books/about/Inventing_the_20th_Century.html?id=aVHRRoQvW60C&utm_source=gb-gplus-shareInventing the 20th Century
