What are the features of the development of historical science in the 20th century?

In the 20th century, humanity has placed great emphasis on the development of science. During this period, many useful inventions were created, which were used both in production and in everyday life. But the main goal of some countries was the development of science in the name of the military industry. For example, a cold war unfolded between the USSR and the United States, which implied an increase in military power. Both atomic and biological weapons were created in these countries. All areas of science were focused on competition. Therefore, astronautics, rocketry, chemical and biological spheres developed.