Einstein's fame is really too big, but if you look at Einstein's life, you will find that the greatest contribution of this scientist's life was created in the first half of his life, and Einstein's second half of life was actually quite lonely. As one of the two optimus pillars of modern human physics, Einstein's theory of relativity has fascinated countless people, but almost all of Einstein's contributions were completed before the 1920s, almost before Einstein was 40 years old.
Einstein achieved little after that. For the next 30 years of his life, Einstein indulged in a theory called the "unification field," which proved to be one of Einstein's big mistakes, and the price of the mistakes was the second half of his life. Maxwell was the forerunner of Einstein's theory. From Maxwell's electromagnetic theory, Einstein derived the special theory of relativity, and on the basis of special relativity, Einstein studied general relativity.
In the second half of his life, Einstein was actually studying the unified field, trying to achieve the great unification of physics, and unifying the gravitational field and the electromagnetic field in a scientific theory.
This is also another divergence under Maxwell's theory. This is not Einstein's struggle alone, before the 1930s, many physicists were studying the unified field, but seeing that all kinds of research were fruitless, quantum mechanics became a new research boom, many physicists turned to quantum mechanics, only A few people such as Einstein were still insisting on the unified field.
Einstein's research results are also many, but no substantial progress has been made, until the 1950s, Einstein has been groping in the unified field theory for 30 years, almost nothing. While those who study quantum mechanics, scientists, and uniform field theory inevitably produce theoretical confrontations, Einstein's second half of his life is rather lonely, almost no one appreciates.
People only remember the first half of Einstein's life. What do you think?