Albert Einstein (1879-1955), a world-famous German-American scientist, the founder and founder of modern physics.
Einstein graduated from the Technical University of Zurich in 1900 and began teaching at the university in 1909. In 1914, he became the director of the Wilhelm Royal Institute of Physics and a professor at the University of Berlin. He was later forced to immigrate to the United States and became an American citizen in 1940.
The late nineteenth century was a period of change in physics. Starting from experimental facts, Einstein re-examined the basic concepts of physics and made fundamental breakthroughs in theory. Some of his achievements greatly promoted the development of astronomy. His quantum theory has a great influence on astrophysics, especially theoretical astrophysics. The first mature aspect of theoretical astrophysics, the theory of stellar atmospheres, was built on the basis of quantum theory and radiation theory. Einstein's special theory of relativity successfully revealed the relationship between energy and mass, solving the long-standing problem of stellar energy sources. In recent years, more and more high-energy physical phenomena have been discovered, and special relativity has become one of the most basic theoretical tools to explain such phenomena. His general theory of relativity also solved a long-standing mystery in astronomy and deduced the phenomenon of light bending that was later verified. It also became the theoretical basis for many later astronomical concepts.
Einstein's greatest contribution to astronomy is his cosmological theory. He founded relativistic cosmology, established a static finite and boundless self-consistent dynamic universe model, and introduced new concepts such as cosmological principles and curved space, which greatly promoted the development of modern astronomy.