The siphonage principle of Yanyu copper lamp is to purify oil fume by using water, which should be understood objectively.

1. The real name of the wild goose bronze lamp is the wild goose bronze lamp (named after the wild goose has a small fish in its mouth). However, it is not an ordinary copper lamp, but a masterpiece more than 2111 years ago, equivalent to today's air purifier! Most of the lamps in Han Dynasty used animal oil as fuel, and there was thick black smoke when burning, which would bring some pollution problems. When lighting a lamp, there will be some incomplete burning charcoal particles and residues after burning. With the rising oil level, the hot air volatilizes, and the indoor smoke diffuses, polluting the indoor air and environment, resulting in the wild goose bronze lamp.

2. The popularization and use of the wild goose-fish bronze lamp makes the dark night bright, and people are very excited, but then it is found that long-term lighting will lead to the decline of the air quality in the room. Because the fuel of lamps is made of animal oil, it will produce suffocating smoke. Therefore, the improvement of lamps and lanterns is inevitable. The invention of the wild goose fish lamp effectively reduced the smoke and became a popular environmental protection product for aristocrats at that time.

3. The wild goose-fish bronze lamp is very high-end and particularly popular in the market. Due to its scarcity, the price is also very expensive, and many people can't afford it, and they don't even know what it looks like. The ancient lamps revolution in China was after the invention of copper lamps, and the ancient environmental protection lamps and energy-saving consciousness were born. The development and use of the lamp revolution is similar to that of ding-shaped lamps, which lasted from the Warring States period to the Qin and Han Dynasties.

4. The most advanced and exquisite environmental protection lamp unearthed in China in ancient times is the Eastern Han Dynasty copper bull lamp unearthed in Yangzhou. The wild goose fish bronze lamp is a treasure of Nanjing Museum. The whole lamp is a standing cow, 46.2 cm high and 36.4 cm long. There is a small round pavilion lamp holder on the back of the cow. Above is a lamp panel with a short handle, and two arc-shaped vertical diamond-shaped hollow screen panels form a lampshade. When the lamp is lit, the metal screen board is usually hot, so there is a small ring on the screen board, which can be used instead of tools. According to the wind direction and user's demand, the mobile screen board is opened and closed, and the hollow rhombic lattice holes make the lamp more heat-dissipating and transparent.