[Beijing Winter Olympics] What is the difficulty of the "five rings" fireworks at the opening ceremony of the Beijing Winter Olympics?
[Commentary] At the opening ceremony of the Beijing 2022 Winter Olympics, a gorgeous fireworks show stunned the world.
At the opening ceremony, the fireworks shapes "Lichun", "Five Rings" and "Snowflakes" were all from a fireworks team in Anping, Hebei.
From the 29 huge "firework footprints" that symbolized the Olympic historical footprint in the 2008 Beijing Olympics, to the high-altitude special effects fireworks at the opening ceremony of this year's Beijing Winter Olympics, Hebei Anping fireworks have been associated with the Olympics for a long time.
In recent years, Anping fireworks have been exported to dozens of countries and regions such as the United States and Japan, blooming gorgeousness from China for many major events.
[Concurrent] Li Liangliang, chief engineer of R&D, production and discharge activities of high-altitude special effects fireworks for the Beijing Winter Olympics
This time, the high-altitude special effects fireworks are more difficult than before, mainly because it is difficult to reach the five rings, and the colors of the five rings are five colors.
Because the raw materials (for each color) are different, the time for turning on the light is different, and the time for turning off is also different, and this time it must be consistent.
[Explanation] Adhering to the concept of simplicity, the high-altitude special effects fireworks displayed at the opening ceremony of the Winter Olympics have only 1,800 rounds of ammunition. The fireworks are non-toxic and slightly smoky, which greatly reduces the impact of fireworks on the environment.
[Concurrent] Li Liangliang, chief engineer of R&D, production and discharge activities of high-altitude special effects fireworks for the Beijing Winter Olympics
The formula is formulated with slight smoke and zero residue, which means that after the special effect illuminator is hit, it will not fall off anything.
[Explanation] For this reason, the fireworks team restored the setting of the Beijing Winter Olympics at 1:1 in Anping County, and constantly tested the drug ratio and the color of the high-altitude special effect luminous medicine ball in order to achieve the best effect.
[Concurrent] Li Liangliang, chief engineer of R&D, production and discharge activities of high-altitude special effects fireworks for the Beijing Winter Olympics
We have carried out hundreds of experiments on the drug ratio, and finally the weight of each special luminous body is accurate to milligrams, and the burning time is accurate to microseconds.
[Explanation] The fireworks shape of the five Olympic rings, each ring has a diameter of 80 meters.
In order for the 'five rings' to bloom at the same height, on the same facade, and at the same time, the ignition time and combined effect of each firework bomb must be carefully calculated. At least 50 people need to work together for a whole day, and the firing force must be mastered.
[Concurrent] Li Liangliang, chief engineer of R&D, production and discharge activities of high-altitude special effects fireworks for the Beijing Winter Olympics
Through one release and one adjustment, five rings, Lichun and Snowflake were finally lifted off perfectly.
[Commentary] Currently, Li Liangliang and his teammates are preparing for the high-altitude special effects fireworks modeling for the closing ceremony of the Beijing Winter Olympics and the opening ceremony of the Beijing Winter Paralympics.
Xing Lu reports from Shijiazhuang, Hebei
Responsible editor: [Yu Xiao]