There are many inventions in the ancient history of China. Besides the four great inventions, what other inventions were there in ancient times?

1. Yuhao Architecture: Yuhao, also known as Yuhao, was an architect at the end of the Five Dynasties and the beginning of the Northern Song Dynasty. Born in Hangzhou, the most outstanding building he designed was the Lingta in the Kaibao Temple of Anyuanmen in Bianliang (now Kaifeng City, Henan Province), the capital of the Northern Song Dynasty. He also wrote a book about carpentry skills-"Wood Classics", a total of three volumes. He is called the builder of Taruban.

2. Movable type printing: Bi Sheng, an inventor in the Northern Song Dynasty, invented movable type printing and improved block printing. He summed up the rich practical experience of block printing in past dynasties. After repeated experiments, he made clay movable type in Song Renzong in the Qing Dynasty (A.D. 104 1- 1048) and made typesetting and printing, thus completing a major revolution in the history of printing brushes.

3. Seismograph: Seismograph is a masterpiece created by Zhang Heng, a scientist in the Eastern Han Dynasty. During the Eastern Han Dynasty when Zhang Heng lived, earthquakes were frequent. Zhang Heng has a lot of personal experience about earthquakes. In order to master the national earthquake dynamics, after years of research, he finally invented the Hou Feng seismograph in the first year of Yangjia (AD 132), which was also the first seismograph in the world.

4. Caihou papermaking: In the first year of Yuan Xing in the Eastern Han Dynasty (105), Cai Lun improved papermaking. Cai Lun's paper is made of bark, hemp head, cloth, fishing net and other raw materials, and it is the origin of modern paper. This kind of paper is easy to find, cheap and has improved its quality, so it is gradually widely used. In order to commemorate Cai Lun's achievements, later generations called this kind of paper "Cai Hou Paper".

5. Gunpowder: Song Ming Ying Xing? "Heavenly Creations and Gunpowder": "All gunpowder is mainly saltpeter and sulfur, supplemented by plant ash. Nitrite returns to Yin, sulfur returns to Yang, and Yin and Yang Er Shen meet in a gap. The appearance is also fake, and the soul is scattered and stunned. "