"We like to shoot big, 6- to 8-inch shells," said Earl Burke, fireworks site manager for Red, White & Boom and a consultant with the show's production company, Pennsylvania-based Pyrotechnico.

The container, the physical shell around the entire firework, is usually composed of pasted paper and string that can be formed into a cylinder or ball.

DAYTON, Ohio (WDTN) – The tradition of lighting fireworks for the Fourth of July takes a lot of chemistry beforehand to make a display look just right. “Fireworks is a combustion reaction in … ...

How are those shapes possible? The basic firework starts off in groups of handmade spherical shells made of cardboard or heavy stock paper, with a special recipe of ingredients packed together inside.

To make these loud explosions, which are usually accompanied by a bright white flash, firework manufacturers use mixtures of perchlorate, a different kind of explosive than black powder.

How are those shapes possible? The basic firework starts off in groups of handmade spherical shells made of cardboard or heavy stock paper, with a special recipe of ingredients packed together inside.

The Fourth of July is synonymous with fireworks displays, but before all the bright colors and thunderous booms, scientists are hard at work behind the scenes making each firework display its best ...

Fireworks by Grucci has developed the first pyrotechnics to skywrite strings of characters. A steel-mortar system fires the golf-ball-sized comets in precisely controlled patterns.