Fireworks
The Fourth of July is about the independence of the United States of America. A date to celebrate how brave and bold the leaders of 13 colonies were 248 years ago. The Continental Congress approved the Declaration of Independence on July 4, 1776. People celebrate in many ways. They have picnics, outings to the lake, parades and then there is almost everyone’s favorite way to end the 4th of July; fireworks!
Fireworks began around 2,000 years ago as Baozhu. Baozhu means exploding bamboo. The reason for this is that is how fireworks began in China. Bamboo stalks were thrown onto a fire and when the air inside got hot enough the bamboo would explode. After gunpowder was invented, it was put in the bamboo to make a louder, more colorful explosion. Europeans loved fireworks when they saw them in China and took the idea back home with them. By the time the American Colonies were founded fireworks were used for many holidays and festivals. The colonists decided the first Fourth of July definitely needed some pyrotechnics. Pyrotechnics is just another word for fireworks.
Have you ever wondered how fireworks are made? A lot of science is involved and it is a very dangerous job because the main ingredient used is black powder. Black powder is an explosive substance made from saltpeter, sulfur and charcoal. Other compounds are mixed together to determine the color of the explosion. What amazes me is that scientists, hundreds of years ago, discovered this. Those scientists were called alchemists. The reality is, those Chinese alchemists were not trying to find colors for fireworks. They were trying to find a way to turn base metals into gold. While heating the metals they learned that they burned at different temperatures and their flames were different colors. So those colorful explosions you see on the 4th of July are created by combining different chemicals and metals..
Have you ever been to a huge fireworks show? Those shows are set up by pyrotechnicians. Pyrotechnicians are people trained to not just make fireworks but also to put together the big shows you see. They are not just trained to do the job, they have to have a license,, just like some other jobs. The license is not easy to get but once you get it you are ready to set up the show.
A big part of lighting fireworks is safety. Whether it is a big show or lighting fireworks at your house. Being prepared, safe and responsible is important. At home it is important to follow these rules. Take care of your pets. Dogs and cats often have a fear of loud noises and bright flashing lights. Never hold fireworks in your hands. Even sparklers that are made to be held are dangerous. Make sure you hold them away from your body and keep them away from other people. Never point fireworks at people or buildings. Have a bucket of water and a water hose nearby. Fireworks can be dangerous and even deadly. Be SAFE this 4th of July.