Learn how the universe works1 and understand how the universe works

The big ** model argues that the original universe was ultra-hot, high-density "point." About 18 billion years ago, this "point" suddenly **, only 10-36 seconds, accompanied by the supercooling phenomenon of vacuum phase transfer, the "point" expanded by dozens of orders of magnitude in an instant, becoming a one-centimeter-scale universe. After that, the universe continued to expand, and the temperature began to drop from billions of degrees Celsius, and at about 55 million degrees Celsius, neutrons and protons were generated from the energy of the cooling process, which in turn merged into atomic nuclei, and these processes took only 3 minutes.

About 300,000 years later, when the temperature of the universe drops to 3,000 degrees Celsius, free electrons are captured by the nucleus to form atoms. For about 30 million years that followed, those atoms continued to expand outward. The universe also continued to cool, and by the time the cosmic temperature dropped to 167 degrees above absolute zero, atoms began to coalesce to form thin gases.

Since then, it has evolved into new celestial bodies due to density fluctuations and gravitational effects. After more than 10 billion years, it has shown a variety of material forms, and has become the universe today. Since the cosmic grand 15 billion years ago, stars and galaxies have been scattering outward.

In fact, the expansion is accelerating. Steinhardt of Princeton University in the United States said that the universe has no beginning and no end, and the universe will never stop and happen again and again.

"Understanding How the Universe Works" is a documentary produced by the Film and Television Drama Documentary Center of **Radio and Television Station, with a total of 8 episodes.

1. First of all, the universe is composed of various celestial bodies, which are combined into large galaxies and constellations, which attract each other and operate non-stop, forming the entire universe.

2. From a small to a large perspective, the earth is surrounded by moon moons, which attract each other through gravity, but there is no contact and distance, which is the smallest operation mode of the universe.

3. After that, the planets in the solar system will join this moon, and the other planets in the solar system will orbit the sun.

4. The solar system as a whole, which cannot be separated from the gravitational attraction of the Milky Way, orbits around the Milky Way and orbits together with other galaxies, forming the whole of the Milky Way.

5. There are many galaxies like the Milky Way, which affect each other and orbit larger celestial bodies.

6. In the end, larger celestial bodies will be discovered, and perhaps in the future, with the development of science and technology, it will be found that these celestial bodies are orbiting around something, and you can also know that the center of the universe is in**. It can be seen that the movement of the universe is caused by the mutual attraction of celestial bodies, and the large celestial bodies limit the movement of small celestial bodies.