Give an example to talk about the aesthetic value and practical value of the perfect combination of ancient art and science and technology.

With the perfect combination of art and technology, scientific thinking and artistic thinking, although in different directions, are more integrated and complementary. Starting from the myth of "Pangu opens the sky", the first cry of ancestors confirmed the existence of dynamic art. Starting from the first stone tool knocked out in primitive times, it not only opened the history of human civilization, but also opened the development and progress of science and technology, as well as the creation and appreciation of plastic arts.

Archaeological data prove that as early as the primitive society, human ancestors began to decorate themselves with animal skins, bones, ivory and feathers, especially the painted pottery that appeared in large numbers in the Neolithic Age, which reached a high level of science and technology in terms of material selection, modeling technology and artistic processing. For example, an animal-shaped object unearthed in Dahankou, the whole painted pottery looks like an animal, with its head up, ears up and barking. Its arm is the handle of pottery, and its design is very delicate and beautiful. Another example is the sharp-bottomed bottle unearthed in Majiayao. The continuous spiral pattern on the bottle gives people a sense of rhythm. The sharp-bottomed bottle is not only beautiful in shape, but also light, so as to facilitate tilting and pumping.

During the Spring and Autumn Period and the Warring States Period, science and technology also made remarkable achievements, which led to the great development of agriculture and handicraft production, the most prominent of which was the progress of iron smelting technology. The gradual popularization of iron production tools in agriculture and handicraft production is of great significance for improving labor productivity and creating conditions for the development of arts and crafts. During the Spring and Autumn Period and the Warring States Period, great changes have taken place in bronze handicrafts from casting technology to artistic style. The casting process has developed from traditional progressive casting to wax pattern, welding and inlaying. The shape changed from traditional ritual vessels to daily utensils, and the ornamentation got rid of the cold style of Shang and Zhou Dynasties. The mysterious religious color gradually disappeared, replaced by a relaxed and free new style, and many exquisite bronze handicrafts appeared. For example, Zeng Houyi's chime (with pictures) is the largest and most complete chime in the world. Arranged in layers according to different sizes, music can still be played so far. It has accurate melody, wide range and beautiful timbre, which embodies the highly developed casting technology and scientific and technological achievements in ancient times. Each chime has a unique shape and is beautified by decoration, and multiple chimes form a unified whole. Among them, bronze workers with bells painted all over and tied swords. It can be seen that bronze handicrafts in the Spring and Autumn Period and the Warring States Period show people new achievements in the fields of science, culture and art from one side.

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