
Chapter 2: Europe in the Middle Ages
The Industrial Revolutions
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The History of Glassmaking
After Gutenberg, the prices of books and pamphlets fell dramatically. The rise in literacy that accompanied the printing press meant a boom for the eyeglass industry. By 1550s, lens crafters were everywhere in Europe. Galileo wrote down a theory of how machines transmit force; Robert Hooke used the idea for the Hooke's joint.
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