According to the subject classification catalogue published by UNESCO, basic science is divided into seven categories: 1, and mathematics includes algebra, geometry, operational research, functional analysis, computer science, statistics, topology and so on. 2. Logic: including the application of logic, deductive logic, general logic, inductive logic and methodology. 3. Astronomy and astrophysics: including cosmology, astrology, radio astronomy, solar system science, etc. 4. Earth science and space science: including atmospheric physics, geodesy, hydrology, oceanography, land science and space science. 5. Nuclear physics: including acoustics, electromagnetism, electronics, physics, etc. 6. Chemistry: including analytical chemistry, inorganic chemistry, nuclear chemistry and physical chemistry. 7. Life sciences: including zoology, natural anthropology, biochemistry, biomathematics, biostatistics, ecology and genetics.