From Quarks to the Universe

The formation and evolution of the universe is a complex process. In the extremely short period after the Big Bang, the universe expanded at a speed faster than light, which is known as the "inflation period". After the 'inflation period', the universe is composed of extremely hot particle soup and begins to cool down in the following minutes. The temperature drops, causing particles to collide and form atomic nuclei. This era is known as the 'nucleosynthesis era'. 380000 years after the Big Bang, the first ray of light appeared in the universe. After the release of the first ray of light, the universe experienced a 200 million year period of darkness. Until the birth of the first star, the universe was illuminated once again. With the emergence of stars and the formation of galaxies and even galaxy clusters, the universe gradually evolved into its current form.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

The Big Bang is a cosmological model describing the origin and evolution of the universe. This model is supported by the most extensive and accurate scientific research and observation today. The "Big Bang" commonly referred to in cosmology refers to the fact that the universe evolved from an extremely dense and warm primordial state before a finite amount of time in the past. The chronological order of the formation and evolution of the universe during this process is as follows: ① singularity of the Big Bang ② 1 microsecond: formation of neutrons, protons, and electrons ③ 3 minutes: formation of helium and hydrogen ④ 380000 years: formation of the first batch of atoms ⑤ 200 million years: convergence of gas and dust to form stars ⑥ 400 million years: formation of galaxies ⑦ 10 billion years: continuous acceleration and expansion of the universe ⑧ 13.8 billion years: current universe.