Its foundation was completed by Albert Einstein in 19 15 and officially published in 19 16. This theory first equates the gravitational field with the curvature of spacetime.
black hole
General relativity has a very important application in astrophysics: it directly deduces that some massive stars will eventually become black holes-some areas in space-time are distorted so that even light cannot escape; The minimum mass of a star that can form a black hole is called the Chandraseka limit.
Gravity transmission
There is evidence that stellar mass black holes and supermassive black holes are the direct causes of high-intensity radiation emitted by some celestial bodies (such as active galactic nuclei and micro quasars). The deflection of light in the gravitational field will form a gravitational lens phenomenon, which enables people to observe multiple images of the same celestial body at a far distance.
gravity wave
General relativity also predicts the existence of gravitational waves (Einstein wrote a paper on gravitational waves in 19 18), which has been confirmed by direct observation. In addition, general relativity is the theoretical basis of the expanding universe model of modern cosmology.
time-space relationship
At the end of 19, due to the perfection of Newtonian mechanics and Maxwell's electromagnetic theory (183 1~ 1879), some physicists thought that "the development of physics has actually ended", but when people used galilean transformation to explain the propagation of light and other issues, they found a series of sharp contradictions and put forward the classical view of time and space.