Relativity is a great revolution in the field of physics. It denies the absolute view of time and space in classical mechanics and profoundly reveals the essential attributes of time and space. Newtonian mechanics was also developed and summarized in relativistic mechanics, which pushed physics to a new height.
2. The establishment of special relativity.
/kloc-at the age of 0/6, Einstein learned from books that light is a fast electromagnetic wave. He has an idea. If a person moves at the speed of light, what kind of world scene will he see? He will not see the advancing light, but only the electromagnetic field that oscillates in space but stagnates.
3. The establishment of general relativity
After Einstein published his first article on the special theory of relativity, it did not immediately arouse great repercussions. But Planck, the authority of German physics, noticed his article and thought that Einstein's work could be comparable to Copernicus's. It is precisely because of Planck's promotion that relativity quickly became a topic of research and discussion, and Einstein also attracted the attention of academic circles.
4.gravitational waves
In physics, gravitational waves refer to ripples in curvature of spacetime, which propagate outward from radiation sources in the form of waves and transmit energy in the form of gravitational radiation. 19 16, Einstein predicted the existence of gravitational waves based on general relativity. The existence of gravitational waves is the result of Lorentz invariance of general relativity, because it introduces the concept that the propagation speed of interaction is limited. In contrast, gravitational waves cannot exist in Newton's classical theory of gravity, because Newton's classical theory assumes that the interaction and propagation of matter are infinite.
5. Law of Conservation of Energy
Formula: E=MC2
The law of extinction is that the quality of matter is immortal; The law of conservation of energy is about the conservation of energy of matter. (Law of Conservation of Information)
6, photoelectric effect
1905, Einstein put forward the photon hypothesis and successfully explained the photoelectric effect, so he won the 192 1 year Nobel Prize in Physics.
7. Cosmic constant
Einstein used the cosmological constant when he put forward the theory of relativity (in order to explain the existence of a static universe with non-zero density of matter, he introduced a term in the gravitational field equation that is proportional to the metric tensor, which was represented by the symbol λ. This proportional constant is very small and can be ignored at the galactic scale. λ is only meaningful at the cosmic scale, so it is called the cosmological constant. The so-called fixed value of antigravity) into his equation. He believes that there is an anti-gravity that can balance gravity and make the universe finite and static.