Who invented the waterwheel? Who invented the waterwheel?

1. The photographic platform of water transport instrument was invented and manufactured by Su Song and Han Gonglian in the Northern Song Dynasty. It is a large-scale automatic astronomical instrument driven by water leakage, which integrates astronomical observation, astronomical demonstration and time telling system.

2. It marks the peak in the manufacturing history of ancient astronomical instruments in China, and is known as the earliest astronomical clock in the world.

3. The design began in the first year of Song and Yuan Dynasties (A.D. 1086) and was completed in the seventh year of Yuan Dynasty. This is an outstanding creation of China in ancient times. Escaping mechanism is the key component of clocks and watches. Therefore, the British scientist Joseph Needham and others think that the Waterway Observatory "may be the direct ancestor of the European medieval astronomical clock."