The practical application of life is satellite positioning. Such as GPS, Beidou and so on. According to general relativity, surface time is 42 microseconds faster than satellite time. In the narrow sense of literature and art, the surface time is 7 microseconds slower than that of satellites. To sum up, surface time is 35 microseconds faster than satellite time. (Or put it this way, satellite time is 35 microseconds slower than the surface). If it is not corrected according to relativity, the positioning error will be more than ten kilometers due to time error.

Extended data

Einstein 1879 was born in a Jewish family in Ulm, Germany (both parents are Jews).

1900 graduated from the Federal Institute of Technology in Zurich and became a Swiss citizen. 1905 received a doctorate from the University of Zurich. Einstein put forward the photon hypothesis and successfully explained the photoelectric effect. So he won the Nobel Prize in physics at 192 1 and founded the special theory of relativity at 1905.

Einstein laid a theoretical foundation for the development of nuclear energy and initiated a new era of modern science and technology, and was recognized as the greatest physicist after Galileo and Newton.

General relativity was founded in 19 15. 1April 1955 18 died at the age of 76.

199965438+On February 26th, Einstein was selected as "the great man of the century" by American Time magazine.

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