AUA Why Nations Fail - Daron Acemoglu | Page 221

Even though innovation is obviously cumulative, there was a distinct acceleration in the middle of the eighteenth century. In no place was this more visible than in textile production. The most basic operation in the production of textiles is spinning, which involves taking plant or animal fibers, such as cotton or wool, and twisting them together to form yarn. This yarn is then woven to make up textiles. One of the great technological innovations of the medieval period was the spinning wheel, which replaced hand spinning. This invention appeared around 1280 in Europe, probably disseminating from the Middle East. The methods of spinning did not change until the eighteenth century. Significant innovations began in 1738, when Lewis Paul patented a new method of spinning using rollers to replace human hands to draw out the fibers being spun. The machine did not work well, however, and it was the innovations of Richard Arkwright and James Hargreaves that truly revolutionized spinning. In 1769 Arkwright, one of the dominant figures of the Industrial Revolution, patented his “water frame,” which was a huge improvement over Lewis’s machine. He formed a partnership with Jedediah Strutt and Samuel Need, who were hosiery manufacturers. In 1771 they built one of the world’s first factories, at Cromford. The new machines were powered by water, but Arkwright later made the crucial transition to steam power. By 1774 his firm employed six hundred workers, and he expanded aggressively, eventually setting up factories in Manchester, Matlock, Bath, and New Lanark in Scotland. Arkwright’s innovations were complemented by Hargreaves’s invention in 1764 of the spinning jenny, which was further developed by Samuel Crompton in 1779 into the “mule,” and later by Richard Roberts into the “self-acting mule.” The effects of these innovations were truly revolutionary: earlier in the century, it took 50,000 hours for hand spinners to spin one hundred pounds of cotton. Arkwright’s water frame could do it in 300 hours, and the self-acting mule in 135. Along with the mechanization of spinning came the mechanization of weaving. An important first step was the invention of the flying shuttle by John Kay in 1733. Though it initially simply increased the productivity of hand weavers, its most enduring impact would be in opening the way to