A firecracker is a small explosive device primarily designed to produce a large amount of noise, especially in the form of a loud bang; any visual effect is incidental to this goal. They have fuses, and are wrapped in a heavy paper casing to contain the explosive compound. Firecrackers, along with fireworks, originated in China.
Firecrackers are generally made of cardboard or plastic, with black-powder as the propellant. Anything from match heads to lighter fluid have been used successfully in making firecrackers. The key to loud firecrackers, however, although in part lying in the propellant substance, is pressure. The entire firecracker must be very tightly packed in order for it to work best. Firecrackers are commonly used in celebration of holidays or festivals and especially the celebration of Chinese New Year by Chinese communities around the world.
The use of firecrackers, although a traditional part of celebration, has over the years led to many unfortunate outcomes. There have been incidents every year of users being blinded, losing body parts, or suffering other injuries, especially during festivities that customarily involve firecrackers such as Chinese New Year season. Hence, many governments and authorities have enacted laws completely banning the sale or use of firecrackers, or banning the use of firecrackers in the street, primarily because of safety issues.
explosive (adj.) very loud and sudden
device (n) an object or machine which has been
invented for a particular purpose
incidental (adj.) less important than the thing something is
connected with or part of
compound (n) a chemical that combines two or more
propellant (adj.) an explosive substance or fuel which causes
something to move forwards
enact (v) to put something into action, especially to
change something into a law
Questions for discussing ( คำถามเพื่ออภิปราย )
Follow up activity (กิจกรรมเสนอแนะ )