Shen Kuo was a famous writer and inventor in Song Dynasty. He wrote a book, Random Talk on Meng Xi, which recorded all kinds of knowledge about geography, physics and chemistry. The compass we use today was invented by Shen Kuo.

2. Zhuge Liang

Zhuge Liang was a famous strategist in the Three Kingdoms period. Not only was he unpredictable and gifted, but he was also an inventor. After the discovery, he invented the wooden cow, the flowing horse and the Kongming lantern, and improved the crossbow.

3. Zhang Heng

Zhang Heng, who once wrote Fu of Two Cities, is not only a famous writer, but also a famous inventor. He invented the armillary sphere and the seismograph. In order to commemorate Zhang Heng's great achievements, the asteroid 1802 in the solar system was named "Zhang Hengxing".

4. Bi Sheng

Bi Sheng made the greatest contribution to the invention of movable type printing. Printing has appeared in contemporary times, but it has always been block printing, which is a waste of manpower and material resources. Later, Bi Sheng invented movable type printing, which can be recycled many times, and promoted the publication of books and the spread of culture.

5. Cai Lun

In the Eastern Han Dynasty, although he was a eunuch, he was ambitious. At that time, the paper used in society was not only expensive, but also rough and not suitable for writing. After research, Cai Lun improved the papermaking technology, and high-quality paper can be made from straw.