Download 20th-Century Technology by Colin Hempstead et al (.PDF)

Encyclopedia of 20th-Century Technology by Colin Hempstead , William Worthington
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Overview: In this encyclopedia on the technology that significantly affected people in industrial societies in the twentieth century, entries fall within six broad areas: food, leisure, homes, health, work, and interrelations. The emphasis is on technologies that influenced people’s lives rather than twentieth-century technological inventions; often technology exists for decades before evolving into something serviceable. Thus, expect to find entries on things like Dishwashers, for which patents were first filed in the mid-nineteenth century but that became devices with widespread use in the mid-twentieth century.
Genre: Non-Fiction > Encyclopedias > History

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