Twentieth Century Inventions by Charles Gibson

Twentieth Century Inventions by Charles Gibson (eBook Download)
Twentieth Century Inventions by Charles Gibson (eBook Download)
Item# EBK000171
$1.99

Product Description

Twentieth Century Inventions by Charles Gibson (eBook Download)
Over twenty inventions from the early twentieth century are detailed in this volume. The author organizes the inventions by type, (telephonic, motive, gyroscopic, etc.) and explains the technical innovations. About half of the inventions are of permanent significance, but other have been superseded with new technology. The early twentieth century was a period of fantastic progress in a variety of technical areas.

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