The video discusses the evolution of human understanding about the universe. It starts with the shift from the geocentric model to the heliocentric model in the 16th and 17th centuries, acknowledging that the Earth was not the center of the solar system. The narrative then moves to the 19th century, when scientists began to understand that the sun and other stars are not the center of the Milky Way.
The narrative then delves into the cosmological principle, a fundamental concept in cosmology stating that the universe is isotropic and homogeneous on the largest scales. This principle is further reinforced by the idea that the universe is not static but is expanding.
The narrative then discusses Albert Einstein's theory of general relativity, which describes gravity as a curvature of space-time caused by mass and energy. The narrative also discusses the cosmological constant, a term added to Einstein's field equation to make it compatible with the idea of a static universe. However, the first version of Einstein's equation contradicted the idea of a static universe.
The narrative then discusses the big bang theory, which proposes that the universe began as a hot, dense state and has been expanding ever since. This theory is supported by the observation of the cosmic microwave background radiation, which is the afterglow of the big bang.
The narrative then discusses the concept of dark energy, a form of energy that is believed to be causing the acceleration of the universe's expansion. The narrative concludes by emphasizing that the big bang theory, along with the concepts of cosmic inflation and dark energy, provides a comprehensive understanding of the universe on its largest scales.
The video also includes a personal anecdote about the speaker's father and his love for the game "World of Warships". The speaker thanks the sponsors of the video and provides a promotional code for the game. The video ends with a preview of upcoming changes to the game.
1. The story revolves around the concept of humanity discovering that it is not the center of the universe.
2. The first step in removing unity from the center of the universe was taken in the 16th and 17th centuries when the fact that the Earth was not the center of the solar system was accepted.
3. It was also considered that the stars that shone in the night sky were all exactly like our sun.
4. The development of the big bang theory is mentioned in the text.
5. The game "World of Warships" is mentioned as a favorite and a source of strategy.
6. The game "World of Warships" allows battles in real time with 30 million players worldwide.
7. The game "World of Warships" is launching submarines as a special game mode with the submarines available in battles at the beginning of 2020.
8. The text also mentions the "cosmological principle", stating that the universe is isotropic and homogeneous on the largest unimaginable scales.
9. The text discusses the theory of general relativity and its description of space and time as part of the same thing, larger than space-time.
10. Gravitational fields are described as distortions in space-time.
11. The text mentions "Einstein's field equation", which relates the curvature of space-time with the matter distributed in it.
12. The first version of Einstein's equation contradicted the idea of a static universe.
13. The text discusses the "cosmological constant", a term added to the equation to make it adequate for a static universe.
14. The text mentions the "big bang theory", which models the expansion of the universe using general relativity.
15. The text discusses the "cosmic inflation", which complements the big bang theory and states that shortly after the emergence of the universe, it expanded absurdly fast.
16. The text mentions the "cosmic microwave background radiation", which is observed today as the light generated in the early universe.
17. The text discusses "dark energy", which is proposed to explain the universe on its largest scales of space and time.