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The physics of fireworks
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Fireworks
When thinking of fireworks, many peoples first instinct is to picture bursts of color accompanied by the loud noises of the explosions. Not many people think of what all goes into the production of a firework and how it works. But then again, why would you when you could be enjoying a beautiful firework display? Exactly, you wouldn’t. Let me tell you a little bit about what goes into fireworks and why you see what you see. It will make you appreciate the fireworks even more than you already do.
The technical definition of a firework is “a device containing gunpowder and other combustible chemicals that causes a spectacular explosion when ignited”. In simpler terms it is something that has chemicals in it and when lit on fire makes a beautiful explosion.
There is still so much more to a firework than that, the producers of fireworks don’t just throw chemicals into a little tube, light it on fire and throw it into the air. There are a lot of flammable chemicals involved, and in order for fireworks to be pretty they have to put the right chemicals together and they have to be exactly the right amounts too.
There are four main chemical ingredients that go into fireworks in order for them to work the way that they do; fuel, an oxidizing agent, some type of colorant in which there is a metal, and a binder (Antonis). All of this is found inside of the aerial shell, this is where all of the chemical reactions take place. Once the substances are ignited, the fuel and the oxidizing agent react with each other and this reaction causes intense heat and gasses (Antonis). In the middle of the shell a charge with a fuse on top will explode because of the high temperatures and gasses emitted from the previously stated reaction (A...
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... grass and trees are already extremely dry people say that having their homes greatly out weighed the spectacular show of the fireworks (NYT).
I think that if the people behind fireworks could form a way to enhance them in a way that the risk of fires being started was lowered significantly then they would be a lot better. All of the things put into fireworks are pretty cool and its amazing how they work and how scientists have figured out what chemicals make each color. But having fireworks when you cannot use them because they may start a fire is not any fun.
I used to think of fireworks and think that they were like magic. I never put any logic into it. Now that I know what goes into them, and how they work, I think they are pretty awesome. You never really appreciate how much work goes into something until you know what it takes; you take things for granted.
Combustion is an exothermic reaction that reacts when in contact with oxygen producing heat and a new product. These reactions are as exothermic as it gets. The general form of a combustion reaction is the reaction between a hydrocarbon and oxygen to create carbon dioxide and water. Hydrocarbon + O₂→CO₂+H₂O. Occasionally, these reactions can release light and produce a flame. To start a reaction, most require a flame to provide heat and initiate the reaction. Combustion is a very common reaction. It's what makes our cars go, and it's what burning is. It is containing carbon which reacts with oxygen to form CO2 and H2O. A simple example of the combustion of Methane, a natural gas, CH4 + 2O2 →CO2 + 2H2O. Another example includes the burning of naphthalene with the equation C10H8 + 12 O2 → 10 CO2 + 4 H2O. The combustion of ethane is 2C2H6 + 7O2 → 4CO2 + 6H2O which is another example. A real life example is the combustion of gunpowder. Gunpowder is a mix of potassium nitrate, charcoal, and sulfur. The potassium nitrate decomposes at a high temperature to provide the oxygen needed. The charcoal and sulfur are the fuels in this reaction. The equation for this reaction is as follows 2 KNO₃ + S +3 C →K₂S + N₂ + 3 CO₂. An incomplete reaction occurs when the oxygen is
The pyrotechnics were gerbs. Gerbs are cylindrical devices that are designed to spray 15-foot plumes of sparks in 15 seconds. Gerbs are befitting for use indoors, as long as the appropriate precautions are taken. The pyrotechnics ignited a polyurethane (egg crate foam) material that is used for packing and product display--but not for "sound proofing," as it was used lining the stage. Considering that this foam is not intended for use as a sound treatment in buildings, it was not treated with fire retardants.
Catching Fire: How Coooking Made us Human by Richard Wrangham is a fresh perspective on the evolution of humankind. Wrangham has made a concentrated effort to prove that humans have evolved particular adaptations, like bipedalism, due to the introduction of cooked foods into their diet. In his book, he is legitimately arguing that humans are the way they are because early on in human evolution, early man discovered fire, discovered the joys of cooked foods, and developed all sorts of fascinating traits still being utilized today.
Fire setting often begins with the child being curious as to what happens when you make a fire, but then it becomes a way for the child to deal with stress and anger. It is an act of “speaking out” because the child feels as if no one is listening and wants attention. This characteristic/behaviour could become more dangerous if the child keeps feeling the need to relieve stress/anger through setting fires, because the child will start setting bigger fires and experimenting with fires more.
The triangle factory fire was very tragic fire that happened. There were 500 people working. When the fire happened 146 people died in the fire they were 8th floor or above . Daniel Donahue Pulled the fire alarm on the 8th floor and the top floors did not hear the alarm all the bottom floors heard the aram. Everyone in the building was scared and did not know what to do( pg.All the people on the bottom were scared and they never went over the rules and what to do in case there is an fire.The doors were locked, and people were crowded trying to get out. What would you do in the fire if you were on the 9th floor?
Studying gaze behavior (where someone looks) is a very important area of research particularly in domain of behavioral psychology. Gaze behavior can, for instance, indicate the amount of attention paid in certain tasks and whether the performance is natural or not. Also, it can indicate the level of competence and experience of the user. Therefore, it can be used as an evaluative tool.
turn on lights as it makes fire and so they turn on all the lights
It 's a nice day in July, the third, the day before all of the excitement. Families are out and about standing in lines wrapped around the store buying kerosene for their grills. Of course you can’t forget the Hotdogs, hamburgers, buns, jello, cake, icecream and popsicles. Any kind of food you could ever want and most in the color red white or blue. People are flocking to the firework stands to buy as many of the biggest and baddest fire works they have to offer. Kids spending there allowance on rockets, snakes, poppers, parachutes, and smoke bombs. Fourth of July is almost in full swing just a few more things before the big party. While all of these people are running around like ants in a frenzy swarming to the melted ice cream cone on the hot pavement. My aunt, uncle, and cousins are at their house preparing for the big party an annual fourth of july
Acme fireworks have been operating as a sole proprietorship for two years, selling fireworks, and putting on ground displays and large aerial display fireworks. Initially, the business was operating as a sole proprietorship, but based on future business engagements, its operations will increase tremendously. As such, the current ownership model is not feasible, and there will be need to expand more workers and the scope of the operations. It is, therefore, necessary that the owner adopt a business form that can give him access to more any business liability
Being a flame warrior is takes aptitudes, and It's better than average opening for work for our life and our group or society and that occupation is unpleasant in light of the fact that need more vitality and more power and that what government requirement for nowadays really. As a matter of first importance firefighting is a profession that can make you feel glad and fulfilled, to your nation to help individuals if there are terrible circumstance, and it
It was not long after the sun set that the city’s organizers of the festival announced the event that everybody had been waiting for. All the younger kids got really excited and ran as far up as they could, the crowd started to settle, and each and everyone of us prepared our necks looking towards the eastern end. Soon loud music began and the fireworks began to soar through the sky! People were in “oooohs” and “ahhhs” every time as soon as rocket would go up and explode in front of a dark canvas, the night sky. The fireworks were in sync with the music and produced a plethora of colorful designs that lit the sky. Although the whole event lasted under 15 minutes, it was by far one of the most wonderful experiences to any party. People let out a sigh once the fireworks display was over and a thunderous applause
Over the years, the growth in technology used in to educate about fire safety has increased greatly. We now have many different ways to reach people of all ages. Some of this information includes: increased importance of the smoke detector, fire safety houses, fire safety videos, educational websites, high school cadet programs, and fire education equipment. All of these are very helpful and successful ways of teaching about fire safety.
Heads-Up Displays (HUD) are now used in many aircrafts so as to display information on the screen without needing the driver to cause distraction or to move their attention from the road. It was in the 1950’s that the Royal Aircraft Establishment in Farnborough started the Development of Heads-Up Displays for military flights. (Quarrington, 1966)
Fire begins with an idea of a spark. Then the spark is made and with the