一、课题背景在科学不发达的古代,人们已开始对宇宙的结构产生种种的设想和猜测。在中国有盖天、混天、宣夜诸说;在希腊,从亚里士多德到托勒密,数百年间建立起极为精致而复杂的宇宙模型,那时在人们的观念里,毫无例外地把人类自己放 I. Background In the ancient era of underdevelopment of science, people began to make various assumptions and speculations about the structure of the universe. In China, there are covered the sky, mixed skies, and declared the night; in Greece, from Aristotle to Ptolemy, hundreds of years built an extremely sophisticated and complex model of the universe. At that time, in people’s minds, Put human beings themselves without exception