No matter how beautiful the fireworks are, they are just a moment's talk.

1, the beauty of fireworks is only a moment, and the sweetness of love words is only perfunctory.

The beauty of fireworks is only a moment, and the beauty of youth will eventually end.

No matter how beautiful the fireworks are, it is only a moment. You and I are just passers-by

Fireworks are actually similar in structure to firecrackers, and they all contain black powder and medicine. Fireworks and display bombs are filled with a large amount of gunpowder for launching and explosion, which will only explode when they rise to a height of about 200 meters. The radius covered by these dots can reach about 80 meters.

Extended data:

In order to protect the environment, many fireworks and firecrackers do not use substances containing heavy metals and sulfur elements, thus reducing the production of sulfur dioxide and other sulfides. Secondly, the consumption of metal powder is reduced, and organic matter is basically used as combustible, thus reducing the inhalable particulate matter produced after the combustion of metal powder. The third is to change the oxygen balance and combustion temperature of the system by changing the amount of oxidant and combustible, and control the combustion reaction.

In the process of making fireworks, some luminescent agents and chromophores are added to make the fireworks emit colorful colors. The luminescent agent is powder of metallic magnesium or metallic aluminum. These metals give off incandescent light when they burn. Chromophores are actually just some metal compounds.

Metal compounds contain metal ions. When these metal ions react violently with oxygen molecules, you will see the compound burn and emit a unique flame color.