Why can the United States rise rapidly to become a world power in just a few years?

The War of Independence (1776- 1783) greatly promoted the development of American science and technology. 1787 adopted the constitution, and the law stipulated that Congress should promote the progress of science and useful technology. Give authors and inventors exclusive rights for a limited time; 1790, the national assembly passed the patent law to reward useful scientific inventions and technological innovations. Encouraged by this series of measures, by 1880, the United States was already the second largest economic country in the west, and by 1890, it was the first in the world, with the output of many industrial products ranking first in the world and gold reserves accounting for 70% becoming the world economic hegemon. Attach importance to agriculture and focus on developing agriculture and textiles. This is the advantage of the United States and the successful experience of Europe. The United States, in particular, has a large population and a small land, and attaching importance to the development of agricultural machinery has become a basic aspect of the rapid development of American agriculture. Most European countries only used simple agricultural machinery to realize agricultural mechanization on a larger scale after World War I, while the United States started at the end of 18. Due to the British technical blockade, the first textile mill in the United States was built by memory. Whitney invented the cotton gin in 1793, which improved the cotton seed removal efficiency by 1000 times, thus making the United States surpass India as the largest cotton exporter. Whitney also developed a batch production method based on the principle of interchangeability of mechanical parts in 1798, which laid the foundation for modern large-scale industrial production. In fact, this has become a symbol of the industrial revolution launched by the United States. 1797, the United States granted the plow patent for the first time, which promoted the production of new plows. In 1869, there are 255 patents for the improvement of plough alone. /kloc-At the beginning of the 9th century, Americans made the first harvester. 183 1 year, McCormick and Hersey successfully manufactured a horse-drawn harvester with high working efficiency. McCormick's factory adopted the assembly line for the first time. A series of agricultural machinery such as seeder, lawn mower, thresher and steel plow also appeared in the United States in the 1930s. 1907 the invention of crawler tractor has brought great changes to agriculture. 19 15, 25,000 tractors were sold for the first time in the United States. From 1860 to 19 16, the number of American farms increased from 2 million to 6.4 million, and the cultivated land area increased from nearly 2.5 billion mu to 5.3 billion mu. In the process of American agricultural revolution, the government played an important role, which has no precedent in world history. 1862, the United States passed legislation, and the government allocated funds to establish universities in various States to promote the development of agriculture and mechanical technology, and decided to establish the Ministry of Agriculture to enhance the leading position of agricultural scientific research. 1887, Congress legislated to set up agricultural experimental stations in state universities. Infrastructure Construction 1830 When the Liverpool-Manchester Railway in England was opened to traffic, the United States also began to lay its own railway: the Baltimore-Ohio Railway. The locomotive was provided by Stevenson in England. Only five years later than the first British railway. By 1860, the total length of railways in the United States is 50,000 kilometers, exceeding the total length of railways in other countries. By 19 15, all the rails have been replaced by rails. The United States is called the country on the wheel of a car. From 65438 to 2009, the United States began to understand the automobile industry in the 1990s. 1893, the first car test. After 1902, the first American car named Alder was mass-produced. The assembly line developed by Ford in 19 13 directly led to a revolution in American automobile manufacturing. Car prices plummeted to a fraction of their original level. 1926 fell to 160 USD. So cars began to enter thousands of households. From 19 13, the United States began to build a road network, and automobile transportation began to play an increasingly important role in the American transportation system. By the end of 1920s, due to the adoption of federal and state-level construction and the extensive use of construction machinery, the national highway network was formed. 1807, R. Frlton (1765—1815) invented the world's first steamboat. Technological Innovation The first industrial laboratory in America was established by the great inventor Edison. Due to the effective combination of technology and economy, modern inventions in the United States are impressive. Edison's invention made Americans proud. He obtained more than 2000 patents in his life. 1876. He invested $20,000 to build a new laboratory in the United States, and obtained an invention in an average of 654 38+0,654 38+0 days, which was called the invention factory. This laboratory later became the American General Electric Company. Americans call him "the king of invention" and "a generation of heroes". There are three prerequisites for the establishment of industrial laboratories: first, the development of science itself proves that it has a direct role in promoting economic development; Second, the emergence of private laboratories proves that experimental research and industrial development are inseparable; Third, the emergence of large companies provides a financial base for industrial laboratories. German Justus von Liebig first made an exploratory attempt in this respect, and Edison greatly promoted this cause. Later, other big companies began to follow his example. 19 in the 1980s, under the strong advocacy of Carnegie and others, the steel industry established an industrial laboratory. 1889, Bell established Bell Telephone Laboratory. In the chemical industry, DuPont established an industrial laboratory in 1902. Wait a minute. By the eve of World War I, the number of industrial laboratories had increased to 375, attracting nearly 20,000 scientists and engineers from universities. After 1950s, an "industrial park" was developed, which combined the scientific and technological experts of universities with the research and production of advanced technologies more closely. In addition, private research institutes and private foundations directly established by some capitalists have also effectively promoted the transformation of laboratory results into industrial production. The combination of introduction and innovation made the United States turn to export technology to Europe from the mid-Kloc-0/9th century, and many mechanical inventions began to lead the world in the 1950s. By 1860, the gross national product of the United States jumped to the fourth place in the world, ranking first in shipbuilding tonnage, second in coal and textile production, and third in pig iron production. By the end of 19, American industrial production has jumped to the top in the world. 1889, the first-class technology of the United States made the steel output surpass that of Europe, reaching more than 4 million tons, ranking first in the world. The development of American automobile industry and aviation industry has promoted the unprecedented development of petroleum industry, and the chemical industry has also surpassed Germany. From 1927 to 1934, the three major synthetic industries in the United States have developed rapidly. So that the United States has won the championship except the fertilizer industry.