Traditional Culture Encyclopedia - Weather forecast - Can fireworks be set off in Hebei during the Spring Festival?
Can fireworks be set off in Hebei during the Spring Festival?
Fireworks and firecrackers are inflammable and explosive dangerous goods with pyrotechnics as the main raw materials, which produce light, sound, color, shape and smoke through burning or explosion after ignition. Because fireworks and firecrackers contain gunpowder, if the discharger does not discharge or discharge prohibited products in accordance with relevant regulations, it may lead to safety accidents.
Fireworks and firecrackers will produce a lot of harmful gases and various metal oxide dust. When a large number of fireworks and firecrackers are set off, if the harmful gas cannot be dispersed for a while in windless or low-pressure weather, it will strongly stimulate people's respiratory tract and make people cough.
Brief introduction of fireworks
Fireworks, or fireworks, used to be called western fireworks. It was introduced from western Europe, and its development is closely related to chemical industry and metallurgical industry. With the development of science and technology, fireworks and firecrackers have become a discipline. It is no longer only used in festivals, but also widely used in national defense and national economy, such as flare bombs, tracer bombs, smoke bombs, incendiary bombs, imitation coach bombs, target indicator bombs and so on.
In addition, various signal products are used in railway transportation, air transportation, sea transportation and inland river transportation. Various smoke agents are also used to prevent local freezing, study the airflow in the atmosphere and various devices, and control pests. In addition, white, black and other colors of aerosol are widely used in making movies.
- Previous article:Where are suitable places to live in Genhe and Alihe?
- Next article:How to handle nosebleeds is the best?
- Related articles
- Pingyang Online Celebrity Tourist Attractions Introduction Composition Pingyang Online Celebrity Tourist Attractions Online Celebrity
- What's the temperature in Sanya now?
- In order to live up to the fine weather on the weekend, my car Xiao Peng and I have G3.
- How to make sentences in an anxious mood?
- Cold weather
- What does it mean that there is no snow in the snowy season?
- On two-character ancient poems
- Leshan Summer Resort is a cool summer resort.
- The story about Dou E?
- What are the astronomical phenomena in 2008?