Physics of Fireworks

After the Chinese discovered the black powder in the 9th century, the relatively short history of fireworks began with this explosive chemical composition. The black powder consists of potassium nitrate, sulfur and charcoal (KNO 3); at the correct amount, this combination produces very explosive results. The use of black powder brought about the evolution of musketry guns, rockets and fireworks. History shows that black powder musketry has evolved into modern guns, cannons and weapons of mass destruction changed the surface of the earth, took lots of lives and changed the results of many wars Celebration.

Fireworks are low explosive pyrotechnics for aesthetic and recreational purposes. The most common use of fireworks is to show off the effect of firework installation as part of fireworks show (also known as fireworks show or fireworks show). Fireworks festival is also regularly held in many places. Fireworks produce four main effects in various forms: noise, light, smoke, suspended matter (such as confetti). It may be designed to burn with colored flames and sparks including red, orange, yellow, green, blue, purple, silver. Displays are common all over the world and are the focus of many cultural and religious celebrations.

Fireworks are the main content of July celebration in the United States. However, stimulation of fireworks is dangerous. Approximately 230 people arrived in the emergency room every day on average around 4th July, and they are injured by fireworks. These injuries occur mainly in the hands and fingers. Fireworks can also cause serious damage to your eyes.

Fireworks related injuries are usually related to "Class C" fireworks. Fireworks of "Class C" include firecrackers, rockets, fireworks and these are the most common damage in the emergency department. The most severe injuries are usually caused by "Class B" fireworks such as Cherry Bomb and M - 80, which are banned from federal auctions. Illegal firecrackers make up 13% of all fireworks damage. Fireworks of "C level" and "Grade B" are generally available in spite of federal regulations and different state bans. Only 8 states are prohibiting consumers from using all fireworks. These states are Arizona, Delaware, Georgia, Massachusetts, New Jersey, New York, Rhode Island, and Vermont. It is not unusual for state residents who strictly supervise fireworks to find fireworks shops near the border where they can use the looser state law.