Einstein
Last year, a scientist in my country stated that he had overturned Einstein's theory of relativity from a philosophical perspective. Of course, this is obviously unreasonable. Relativity is a natural science, and its theoretical basis comes from mathematics. If you want to overturn the theory of relativity, you must first prove that the mathematics we are learning now is wrong, and these mathematical formulas have been tempered for a long time.
What kind of world does the theory of relativity describe? What is described is so incredible, but it makes people have to believe that let us interpret the theory of relativity carefully. After reading it, you may have a new understanding of the world.
First of all, the theory of relativity is not the parachuting of Einstein's thinking. This is a brand new concept proposed by Einstein based on the theories of Newton's classical mechanics and Maxwell's classical electromagnetics, that is, the concept of four-dimensional space-time . We live in three-dimensional space-time, and four-dimensional space-time is to add the timeline to the three-dimensional time.
Newton believes that everyone's time is the same, and everyone's time is 24 hours a day, but Einstein does not think so. He believes that everyone's time is different, which is related to speed. As long as your speed is fast enough, you can slow down time. Isn't it incredible?
Time expansion effect
Then let’s give a look. If you are now riding a spaceship and traveling for a year at the speed of light, and the time on Earth has passed for decades, your friends have grown old, but you are only one year older, this is the time expansion effect in Einstein’s theory of relativity. The closer the speed is to the speed of light, the more obvious the time expansion is.
time expansion effect is not only successful in theory. There are examples in real life that can be proved that rays in the universe will collide with molecules in the atmosphere, and will produce high-energy particle that moves close to the speed of light at a certain distance in sea level. The lifespan of this high-energy particle is 2.2 microseconds. Through calculation, high-energy particles can only move more than 600 meters, but scientists have found that the movement distance of high-energy particles is about 14 kilometers. This is because the lifespan of particles that move close to the speed of light is about 20 times.
High-energy particle
Based on the theory that the speed of light remains unchanged in , Einstein used formulas such as Lorentz transformation to deduce the formula of the time expansion effect. It can be seen that the theory of relativity was not imagined out of thin air by Einstein. He was based on mathematics. At the same time, Einstein also deduced the mass-energy equation and the scale shrinkage effect.
Then Einstein proposed general theory of relativity . He believed that there is no gravity in this world. The so-called gravity is just a time-space bending. Only matter has mass, which will make the time-space bending around it. Simply put, time-space bending means that time-space bending slows down. As we all know, a black hole is a large-mass object, and the space-time bending effect it produces will be more obvious. Therefore, there is a theory that close to a black hole, it may realize space-time shuttle.
Spatial time curved
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