The scorching hub
In the Tang Dynasty, the book "Burning Hub" recorded such a thing: the Han Dynasty Shiber Liang was caught in a fire, a wizard suggested that a fish tail shape of copper tile on the top of the layer, you can prevent lightning caused by the sky. The tile at the beginning of the fishtail set on the roof, in fact, is also used for lightning avoidance, can be considered as the rudiment of the modern lightning rod. And as early as before, China has a lightning rod, generally to the faucet for decoration, the Dragon Mouth has a lightning rod head.
New business in China
French traveler Cabri Obe Dama Ganland in 1688 on the "China New Thing" book is: China's roof at both ends, there is an upturned faucet, longkou spit out twists and turns of metal tongue, stretched out into the sky, tongue root linked a thin wire, straight to the ground. This wonderful device, in the moment of lightning wizards, if Lightning hits the house, the current will be from the Dragon tongue along the eye to the ground, to avoid lightning destruction of the building. This shows that the lightning protection device in ancient Chinese architecture has been basically similar to the modern lightning rod in mass and structure.