About the changes brought about by the development of science and technology

1 promotes the development of social productive forces.

The development of science and technology has promoted social progress and human progress. For example, the invention and improvement of the steam engine in the first industrial revolution pushed mankind to age of steam, and the social productive forces developed greatly. The application of electricity in the second industrial revolution brought mankind into the electrical age, and the invention and application of computer and information technology in the third scientific and technological revolution brought mankind into the information age.

Another example is the invention and application of telephone and telegraph in the second industrial revolution, which promoted the development of human telecommunications, made people's communication more convenient and promoted economic development and social progress. There is also the internet now, which can let people know about state affairs and current affairs news as soon as possible and enjoy a group of books at home, that is, "scholars don't go out, and the world knows it."

2. It has promoted great changes in social economic structure and social life structure.

The development of science and technology in the 20th century was mainly realized through the third scientific and technological revolution. The third scientific and technological revolution made the proportion of primary industry and secondary industry in the national economy decline, and the proportion of tertiary industry increased.

3. The basic necessities of life have changed.

The 20th century has experienced world wars such as World War I and World War II, and people have a greater demand for post-war life. In order to adapt to the development of science and technology, capitalist countries have generally strengthened their state support for scientific research and greatly strengthened their support and capital investment in science and technology. With the continuous progress of science and technology, great changes have taken place in all aspects of human daily life, such as food, clothing, housing and transportation.

The great improvement of science and technology has provided a solid material foundation for the development of world culture.

The development of science and technology in the 20th century, such as the development of computers and atomic bombs, made the global culture more and more closely linked, and the modernization showed the characteristics of diversification. Academically, there are new features of mutual understanding among disciplines and new academic and scientific trends.

It brings opportunities and severe challenges to the economic development of all countries in the world.

1945, after the United States successfully trial-produced the atomic bomb. 1949, the Soviet Union also successfully tested an atomic bomb. 1952, the United States successfully trial-produced the hydrogen bomb. During the period of 1953 ~ 1964, Britain, France and China successfully trial-produced nuclear weapons. The technology of atomic energy was first applied to the military field, and the peaceful use of atomic energy industry has also developed to a certain extent.

1959, transistor computers appeared, and the operation speed exceeded 1 100 million times per second. 1964 reached 3 million times.

Photonic computers and biological computers appeared in the 1990s. Generally, every five to eight years, the operation speed increases by 10 times, the volume decreases by 10 times, and the cost decreases by 10 times. China's self-designed "Galaxy" mainframe computer can also calculate hundreds of millions of times per second.