Why can't the Olympic torch be blown out by wind and rain? Pray for the great gods.

Because the Olympic torch may face all kinds of unexpected climatic conditions during the relay, strong winds and heavy rains will severely test the torch's combustion technology. In order to provide a reliable combustion system for the torch, Aerospace Science and Industry Group contributed a reliable "core" to the Olympic flame. This "core" combustion system consists of three parts: burner, pressure stabilizing device and gas storage tank. Among them, the burner adopts an innovative double flame scheme, that is, the pre-combustion chamber plus the main combustion chamber. This is the first time that the precombustion chamber is separated from the main combustion chamber in the design of the Olympic torch. The flame in the precombustion chamber will ensure that the torch will not go out. Even in windy weather, the precombustion chamber buried under the top of the torch will not be affected. The flame derived from the main combustion chamber will make the flame of the whole torch burn vigorously and ensure the visual effect of the torch. The torch of Beijing 2008 Olympic Games has reached a new technical height in terms of combustion stability and adaptability to the external environment, and it can keep burning under the conditions of strong wind of 65 kilometers per hour and 50 mm rainstorm.