Can you name an invention that has brought great benefits to human life? And talk about how it has changed, about 5 words.

1. Steam engine: promoted the development of the whole industrial revolution

Traditional horsepower or water power cannot provide the power needed by the industrial revolution, and the development of steam engine energy has brought a more effective and powerful power to the world. Although the ancients began to explore this aspect in the 2nd century BC, it was not until Watt's steam engine was put on the market that the commercial value of the steam engine was really opened. Many historians believe that the development of the steam engine is one of the most important inventions of the industrial revolution, because the appearance of the steam engine promoted the development of metallurgy, coal mines and textiles. The appearance of steam engine and the mechanization of textile industry have increased the iron consumption of industry. Because Britain is rich in iron ore and coal mines, the increase in demand has stimulated the improvement of iron smelting technology and coal mining industry, and accelerated the pace of industrialization. The steam engine train in 184 and the steam engine ship in 187 greatly improved the transportation conditions and assisted the development of the industrial revolution.