폭죽에 대한 파원포인트 영어발표 자료입니다.
1. Basic Structure of Aerial shells
2 . Combustion reaction and flame game
3. Discharge process
4. Fireworks display Manufacture
Combustion reaction and flame game
Divers color of flame game is utilized the reaction of flame of metallic elements.Mainly the reaction of flame is appearing by metallic element contained in the matter.Even when it remains as a genuine matter, it used to disclose same reaction under the conditions of combined with other matter chemically. Yellow color is caused by ray radiates from Natrium ion and color is caused by ray radiates form strontium. But it is very difficult to obtain perfect green flame practically. Once we tended to use green color which is the copper contains arsenic but we do not use it lately owing to very strong toxic character in it. Still It remains as a pie in the sky to obtain simon pure green flame in reality.