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from: How Fireworks Work
Since fireworks have gathered the interests of people not only in China but also worldwide, fireworks enthusiasts have created a new market to answer growing need to supply the fireworks. This lead to many varieties of fireworks to specifically meet the public needs depending on how it will be used, for commercial, intricate fireworks display or for a simple family get together event.
There are a wide variety of fireworks available in the market. Each produces a different effect depending on how they were set up and the materials used in making them. In spite of their varieties, fireworks function on basic principles which apply to each and every firework.
Basically there are three basic types of fireworks: the firecracker, sparklers and the aerial fireworks.
Firecrackers are the oldest and the most basic of all three. The Chinese first created them by stuffing gunpowder in hollow bamboo tubes. Typical firecrackers consist of gunpowder or flash powder which is then tightly packed into a tube. A fuse serves to light the powder inside. Sometimes, manufacturers add materials such as aluminium to make the explosion bright.
To compare, sparklers simply emit bright flashes of light. They are designed to burn brightly for a long time unlike firecrackers which usually just blow up in a fraction of a second. These are commonly used or allowed to be used by children.
Finally, there are the aerial fireworks. They are probably the most common form of fireworks since they are the ones used during celebrations such as the New Year and, in the United States, the Fourth of July.
The aerial fireworks are the most complex among the three. Not only they produced intricate designed when ignited, their basic chemical compounds or materials are also complicated. They are usually composed of a container, a bursting charge at the centre which ignites the stars located on its side, and the fuse which determines how high the fireworks can fly. Different compounds are used in the stars to create different colours.
Todate, the three varieties are still used by the public. However, to ensure safety of its use, modern fireworks masters have developed the technique to make the fireworks tasks easier by use of modern technologies that automates the blasting and functions efficiently and accurately in fraction of seconds.
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