Physicist StephenHawking is one of the greatest scientists in the 20th century. He has made great contributions to human understanding of the universe. Hawking 1942 was born in Oxford, England. He studied physics at Oxford University and received his doctorate at Cambridge University. However, at the age of 2 1 year, Hawking was diagnosed with amyotrophic lateral sclerosis (ALS), a rare progressive nervous system disease, which led to his gradual loss of mobility.
Despite the deterioration of physical condition, Hawking's thinking ability has not been affected. He continued his research and published papers by using computer-aided equipment and cooperating with colleagues. Hawking's research fields are very extensive, including black holes, the origin of the universe, time travel and so on. His book A Brief History of Time became a best seller and made him a public figure.
Exploring the mysteries of the universe: Hawking's theory and demonstration
1. Breakthrough in theoretical physics
Hawking made many breakthrough contributions in the field of theoretical physics. One of the most famous is his black hole theory. Black holes are extremely strange celestial bodies in the universe. Its gravity is so great that light can't escape. Hawking put forward the theory of black hole radiation, that is, black holes are not completely dark, but emit weak radiation. This theory broke the previous cognition of black holes and had a great influence on cosmology research.
In addition, Hawking put forward the theory of the origin of the universe. He believes that the universe originated from a big bang, that is, the big bang theory. According to this theory, the universe began to expand from an extremely hot spot about 654.38 billion years ago, forming the universe we see today. This theory is supported by a large number of observation data and is widely accepted.
2. Breakthrough of empirical research
In addition to theoretical breakthroughs, Hawking also conducted a series of empirical studies to verify his theory. One of the most famous is his research on black holes. Although the black hole itself cannot be directly observed, the matter around the black hole will produce radiation, which is called Hawking radiation. Hawking proposed an experimental method to verify his black hole theory by observing the radiation near the black hole. This experiment is considered as an important test of Hawking's theory.
In addition, Hawking also used his computer-aided equipment to carry out a large number of calculations and simulation experiments. By simulating the evolution of the universe, he studied various phenomena in the universe, including the formation of galaxies and the evolution of stars. These empirical studies provide important support for our understanding of the universe.