In addition, a bronze oil lamp in the form of a bull offers an intriguing insight into the ingenuity of our ancestors. A pair of hollow horns route the smoke from the lamp to the bull's abdomen, which is filled with water, where the smoke dissolves.
特別是那一座銅牛燈，中空的牛角煙囪直通裝著水的牛肚子，如此一來，油燈燃燒時的煙就可隨著牛角溶於水中，而不造成任何空氣汙染，更可見古人的聰慧。