Dragon-Bone Waterwheel
Playing Cards
Huizhou-Style Print
Plowshare, triangular-shaped |
The Dragon-Bone Waterwheel is a farmland irrigation instrument invented by Bi Lan in the Eastern Han Dynasty and perfected and popularized by Ma Jun in the Three Kingdoms Period. It consists of a transmission shaft, square link joint, carriage etc. It was first driven by manpower and then extended to the use of animal power, water power and wind power. It has been put into use till today due to its convenience of making and high water-lifting efficiency. |








