firecracker
Transcript: People later learned that Nian was afraid of loud noises and the color red, The following year, the villagers were ready for it. They set off firecrackers, lit all their lamps and decorated their houses in red, and burn the fireworks whenever Nian was about to arrive, to scared away the beast. firecracker's harm Source1:http://mmdelrosario.hubpages.com/hub/the-story-of-the-nian-monster source1 firecracker's origin Scource1 source1 source1 firecracker's invention According to legend, firecracker was invented by a Chinese cook. The cook accidentally mixed three ingredients, namely charcoal, sulfur, and potassium nitrate, and derived a black, flaky concoction. Further experiments revealed that when this mixture was stuffed inside a bamboo shoot and ignited, it exploded with a very loud sound. Source3:http://baike.baidu.com/view/1691.htm#8 (Chinese) According to legend, once upon a time, there was a monster called " Nian "(year). Every year on December 31st, it would come down from the mountains to hunt people. firecracker release a lot of harmful gases while burning, like sulfur dioxide (SO2), nitrogen dioxide (NO2), hydrogen sulfide (H2S), carbon monoxide (CO), nitrite (NO2-)..., source3, 4 source1 Shannon Lee p.4 Firecrackers Over time, the government allows some of the cities again, because it was a important traditional culture in China. In China, firecrackers were used in the celebration of some traditional Chinese holidays , like Chinese new years, weddings, inauguration, or some activities in the temple. Suddenly, the deafening noise of firecrackers sounded endlessly and it realized that the house was covered by red paper, this scared it even more and it ran away. source3, 5 Firecrackers can also cause noise pollution and other pollution that effect human, so some big cities in China were not allow to burn any firecrackers before. source3 Source2:http://www.buzzle.com/articles/ancient-chinese-fireworks-invention-history.html source2, 4 source1 This become a tradition in China. Chinese people celebrate in remembrance of this legend and continues till today! Source5:http://www.bbc.com/news/world-asia-china-25855509 One day, a wise, old man passed through the village and told an old woman, that he will teach the woman how to scare Nian away. it may cause the acid rain and corrode the building or frosts, and affect the soil and crop production, Source4:http://openclipart.org/homepage (images) In the evening of December 31st, when Nian arrived the village, it saw that all the houses were dark except the house in which an old woman lived. Nian approached the house.
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