How fireworks are made

The History:

Fireworks where first introduced in 7th century china. this has been confirmed as one of the earliest documented era to use fireworks for celebration. It is a part of the culture of China and had its origin there, eventually it spread to other cultures and societies. Important events and festivities such as the spring festival (Chinese New Year) and the mid Autumn festival were and still are times when fireworks are guaranteed sights. China is the largest manufacturer and exporter of fireworks in the world today.

The types:

there are three main types of fireworks; stationary, arieal, and firecrackers. Statonarty fireworks, such as fountains and juming jacks, are fireworks that make a show of colors without exploading or launching into the air. These, along with firecrackers are what are also know as “safe and sane.” The “insane” fireworks are classified by the arieal fireworks, which launch into the air and create a large boomb followed by a large aray of colors in specific patterns. There are commercial fireworks that are illegal to many states of california, these fireworks are typically, morters, cakes, bottle rockets, and helecopters.

How they are made (arieal fireworks):

Shells

Fireworks start off as handcrafted shells, encased in treated cardboard and heavy paper. But inside these shells are the blueprints that control how a firework will take off, detonate and appear across the canvas of the night sky. The shell innards include fuel, an oxygen producer, a binding resin and color-producing agents all carefully mixed into a recipe that renowned pyrotechnical companies keep locked up. The most familiar characteristics of a firework are its radiant tendrils and plumes that stream out as the shell breaks open. Each of these colorful protrusions has a matching pyrotechnic pellet or star, an identical seed within the shell.

The particular arrangement of the stars within the shell determines how the firework will unfold in space. A smiley face or a star-shaped arrangement, for instance, will burst into fireworks with exactly those shapes. Stars themselves come in many shapes and sizes, from round, dough-like balls to pressed pieces that resemble everyday batteries. Still other stars can be meticulously hand-packed into small tubes and inserted into the shell to generate a rocket-powder effect, sending swarms of color along squiggly trajectories.

The round stars can be as small as a pea or as large as a clementine. Larger pellets have more material to burn, causing the plume that spews from it to spread farther into space and to last longer.

The pressed pellets are commonly called comet stars because they produce a broad brush-stroke effect as opposed to the skinnier filaments that arise from round stars. Because comet stars have more mass to them, they also burn for a longer duration of time, leaving frayed edges and sweeping plumes that are peculiar to palm-tree fireworks.