Paleontologists told us that a cell was
born about 3.6 billion years ago. Biological meanings are not only about the
origin of life and the study of the origin of the cells, but also about the
scientific cosmology. The origin of the cell consists of three aspects; (1)the
origin of the eukaryotic cells of all eukaryotes; ②the life of origin associated with
the origin of prokaryotic cells; ③doctrine of the latest developments in the three realms, the origin
of ancient nucleated cells. The origin of life should be traced back to the
origin of the elements and chemical molecules related to life. Thus, the origin
of life should be told about from the beginning of the formation of the
universe, by the so-called "big bang" of carbon, hydrogen, oxygen,
nitrogen, phosphorus, sulfur and other major elements of the building blocks of
life. The Milky Way had a big explosion occurred about 6.6 billion years ago,
debris and undisciplined substances after a long period of agglutination, which
is about 4.6 billion years ago to form the solar system. As a part in the solar
system, The Earth formed about 4.6 billion years ago as well. Then, the icy
nebulosity released a lot of gravitational potential energy which converted into
kinetic energy, thermal energy, resulting in elevated temperatures, plusing the
Earth's internal heat of radioactive elements to the warming effect, so the
early Earth was a molten state. The substances of the earth with high
temperature split during rotating process, the heavy elements sink to the
center condensed into the Earth's core, mantle and crust constituted of lighter
substance, then a circle structure emerged gradually. This process needs a long
time.
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