The development trend of the history of human development is constantly promoted by thousands of inventions. In this industry, industrious and intelligent China people have made brilliant achievements, and many inventions in ancient China are international. Here, we mainly introduce three kinds of exquisite processing technology expertise in detail. Among them, the life of kings, royals and bureaucrats in ancient China was very luxurious. They often use precious spices for aromatherapy in their daily lives, and even mattresses and bedding need to pay attention to the fragrance of blue musk deer. However, aromatherapy for quilts is bound to cause fires. Therefore, the bronze incense burner came into being. Bronze incense burners first appeared in the Spring and Autumn Period in China, and then disappeared. It was not until the end of the Western Han Dynasty that it was re-made by a craftsman named Ding Huan in Chang 'an, Beijing, and it has been passed down to this day.

If the general copper incense burner is placed in the quilt, it will inevitably fall down, and the ashes and sparks in the furnace will be scattered to the bedside. How to ensure that the contents of the copper incense burner are not easy to spill when it collapses? The swing that can often be seen brings design inspiration to Ding Man. He thought: if two holes are punched in the upper edge of the small incense burner and two small shafts are installed, and the shafts are supported on an outer ball, no matter how the outer ball rotates around the center lines of the two small shafts, the copper incense burner will always remain stationary in one direction. If a double-layer radial vertical outer ball is added, then no matter how the outer ball is turned over, the core small incense burner will completely keep the door up. Ding Huan's idea not only made a bronze incense burner, but also applied this structural design to mobile phone gyroscopes used in airports and rocket navigation bars today after 2000.

I didn't expect such high-tech items to be traced back to the source. Their ancestors were actually bronze incense burners in China. Lu Ban is one of the celebrities of plastic arts in history. He invented life tools such as hand saw, planer, stone mill and folding umbrella. Luban's surname is Gong defeat, and he is a famous class. Born in 507 AD, Tengzhou, Shandong Province, lived in the late Spring and Autumn Period to the early Western Han Dynasty. He was born in a craftsman's home for generations. He was influenced by architectural engineering since childhood and accumulated a lot of social experience. It is said that Luban once went up the mountain to cut wood and was accidentally scratched by the jagged leaves of a weed. After careful consideration, Lu Ban invented the hand saw according to this principle. Chinese culture is a fearless, kind and intelligent Chinese nation. When Ou Yezi was born, it coincided with the stage of contention among countries in the Eastern Zhou Dynasty. As a teenager, Ou Yezi learned metallurgical industry from his mother-in-law, and gradually smelted bronze swords, iron hoes, iron axes and other production equipment.

He is willing to use his brain and has great intelligence; Ou Yezi is strong and diligent. He discovered the difference between copper and iron, and finally forged the first iron sword: "Longyuan", which was the first cold weapon in China. The first one cast by Ou Yezi is called Long Yuan, the second one is called Taiya, and the third one is called Kampot. This kind of treasure knife has a characteristic: it bends and turns, really like a belt. If it is loose, the blade will pop out and stand upright; If you throw the handkerchief into the air and slowly fall from the front of the sword, it will be split in two. Cutting copper and iron is like cutting mud and removing soil. Cutting Six Generals is one of the famous swords cast by Ou Yezi, ranking first among the five famous swords. It is said that this Zhanlu sword is a "sword of loyalty", and it took Ou Yezi three years to build it. The owners of this nod have all changed hands. Its owners went through Gou Jian, He Lv and King Zhao of Chu in turn, and the last shovel officer was Qi Jiguang, a general in the Song Dynasty. After Qi Jiguang was killed, Zhan Lu's sword disappeared.