The establishment of the geocentric theory has a lot to do with the philosophy of ancient Greece. On the issue of discussing the material origin of the world, the philosophy of the philosophers Empedocco's comprehensive predecessors suggests that the world is composed of four elements: earth, water, gas and fire. The Plato school accepted this concept and mapped the four elements to another perfect graphic polyhedron in geometry. There are five kinds of regular polyhedrons (also known as Plato regular polyhedrons), and Plato believes that the last type of icosahedron corresponds to the sacred constellation of the sky.
Another student of Plato, Aristotle, systematically developed the four-element theory and combined it with the cosmological model. Aristotle rejected Democritus's atomism (that is, matter consists of the smallest and inseparable particles), and believed that everything under the moon consisted of earth, water, gas, and fire. The nature of the soil is dry and cold, the nature of the water is cold and wet, the nature of the gas is wet and hot, the nature of the fire is heat and dry, the combination of four elements and mutual transformation, is used to explain all natural phenomena. If the plants break out of the ground, it is a combination of fire in the soil, water and sunlight. When the trees are dried and lose the water, they can be burned and turned into earth and fire. The world above the moon and the moon is made up of the fifth "sacred element" ether.
- Aristotle also uses four elements to explain the physical world, such as soil and water tend to move downwards, and fire and gas tend to move upwards. He also believes that heavy objects fall to the center of the universe, and light objects fall up to the moon (the moon's shadow is formed by the low-level four elements that are contaminated by the moon's ether). If the natural order is fully realized, the four elements will be arranged in a concentric sphere, filled with space within the moon's celestial sphere: the soil directly surrounds the center, and then water, gas, and fire.
- Aristotle accepted the celestial theory of Odox, where the sun, moon, planets and stars are arranged on different celestial spheres. Regarding the interpretation of planetary motion, Plato believes that planets are living gods that move by their own power. Aristotle disagrees with this. He believes that planetary motion must have its promoters. The highest non-physical first promoter in the outermost stellar days comes from the highest material (ether or god) to each other. Layers up to the love of the earth's elements. Thus, in Aristotle's philosophical system, the first promoters, celestial bodies, and elements of the earth, minerals, flora and fauna, and humans form an orderly structure and reach the apex in people because human beings are elements and souls. Combination of.
In the eyes of the ancient Greeks, the average-round system of planetary operations belongs to mathematical astronomy, allowing construction and even irregular movements to "save phenomena"; but in the field of philosophy and physical astronomy, the nature of celestial bodies is still perfect and honorable. And sacred. These mystical ideas are everywhere in ancient Greece. The ancient Greeks believed that the world is a big universe, and the human body at the center of the world is a small universe. The great universe acts on the human body through mysterious forces. After the ancient Greek philosophy to transform astrology, the zodiac and the planets were given elemental attributes, and these attributes were combined with the gods represented by the planets (the names of the planets were originally gods) and the human character. The personal destiny is the ancient Greek astrology of the predicted object.
The astronomical achievements of ancient Greek scientists to explain the operation of the planet have also been used by astrology, which has made the astrology "precision" reputation. Ancient astronomers from Iba Valley, Ptolemy, to Kepler, were also famous astrologers themselves, and they also tried to find the physical basis of astrology. In the end, Copernicus, Kepler, Galileo, and Newton's research on planetary motion not only set off an astronomical revolution, but also completely denied the foundation of astrology. History is truly changeable and interesting, and this is the story to be told in the next chapter.