Fireworks are products that can form colors, patterns, sound effects and visual effects when they are set off. Firecrackers are products that explode when the main body is set off, which can produce sonic boom, flash and other effects, mainly auditory effects. Fireworks are developed on the basis of gunpowder. At first, it was a pastime for nobles to compete for hegemony and luxury. In the Ming and Qing Dynasties, fireworks production technology made new progress and gradually became a holiday gift. Fireworks and firecrackers should be set off every major event such as the Spring Festival and Lantern Festival.
Luminous effect is one of the main effects of fireworks. Whether it is a luminescent agent that can emit light, a medicament that can produce bright stars, or a medicament that can produce flicker extinguishing effect, the fireworks effect they produce cannot be separated from the development of light efficiency.
Folk fireworks
In ancient China, people believed that fire could dispel ominous signs; Spark is a harbinger of happiness; Sound can frighten ghosts and dispel qi; Smoke makes the yang rise. Fireworks and firecrackers produce sound, fire, smoke, light and other effects when they are set off, and naturally combine with people's ideas, thus becoming people's ideal holiday supplies.
Fireworks and firecrackers should be set off in various festivals in our country to express auspicious and festive joy and pray for peace and well-being. For example, in the Spring Festival, New Year's Day, Lantern Festival, National Day, and the day to greet the God of Wealth, in ancient times, when the court held major events, celebrations, reception of foreign guests and important ceremonies, fireworks and firecrackers would be set off.