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Firecracker
A firecracker (cracker, noise maker, banger) is a small explosive device primarily designed to produce a large amount of noise, especially in the form of a loud bang, usually for celebration or entertainment; 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. History The predecessor of the firecracker was a type of heated bamboo, used as early as 200 BCE, that exploded when heated continuously. The Chinese name for firecrackers, 爆竹(''baozhu''), literally means "exploding bamboo." After the invention of gunpowder, gunpowder firecrackers had a shape that resembled bamboo and produced a similar sound, so the name "exploding bamboo" was retained. In traditional Chinese culture, firecrackers were used to scare off enemies or evil spirits. Firecrackers production and sales Ingredients Firecrackers are generally made of cardboard o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diwali
Diwali (), Dewali, Divali, or Deepavali ( IAST: ''dīpāvalī''), also known as the Festival of Lights, related to Jain Diwali, Bandi Chhor Divas, Tihar, Swanti, Sohrai, and Bandna, is a religious celebration in Indian religions. It is one of the most important festivals within Hinduism where it generally lasts five days (or six in some regions of India), and is celebrated during the Hindu lunisolar months of Ashvin (according to the amanta tradition) and Kartika (between mid- October and mid- November).''The New Oxford Dictionary of English'' (1998) – p. 540 "Diwali /dɪwɑːli/ (also Diwali) noun a Hindu festival with lights...". It is a post-harvest festival celebrating the bounty following the arrival of the monsoon in the subcontinent. Diwali symbolises the spiritual "victory of light over darkness, good over evil, and knowledge over ignorance".Jean Mead, ''How and why Do Hindus Celebrate Divali?'', The festival is widely associated with Lakshmi,Suzanne B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fireworks
Fireworks are a class of low explosive pyrotechnic devices used for aesthetic and entertainment purposes. They are most commonly used in fireworks displays (also called a fireworks show or pyrotechnics), combining a large number of devices in an outdoor setting. Such displays are the focal point of many cultural and religious celebrations. Fireworks take many forms to produce four primary effects: noise, light, smoke, and floating materials ( confetti most notably). They may be designed to burn with colored flames and sparks including red, orange, yellow, green, blue, purple and silver. They are generally classified by where they perform, either 'ground' or 'aerial'. Aerial fireworks may have their own propulsion ( skyrocket) or be shot into the air by a mortar ( aerial shell). Most fireworks consist of a paper or pasteboard tube or casing filled with the combustible material, often pyrotechnic stars. A number of these tubes or cases may be combined so as to make wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fallas
The Falles ( ca-valencia, Falles; es, Fallas) is a traditional celebration held annually in commemoration of Saint Joseph in the city of Valencia, Spain. The five main days celebrated are from 15 to 19 March, while the Mascletà, a pyrotechnic spectacle of firecracker detonation and fireworks display, takes place every day from 1 to 19 March. The term ''Falles'' refers to both the celebration and the monuments (''Falla'', singular; ''Falles'', plural) burnt during the celebration. A number of towns in the Valencian Community have similar celebrations inspired by the original Falles de València celebration. The Falles festival was added to UNESCO's intangible cultural heritage of humanity list on 30 November 2016. Each neighbourhood of the city has an organised group of people, the ''Casal faller'', that works all year long holding fundraising parties and dinners, usually featuring the noted dish paella, a specialty of the region. Each ''casal faller'' produces a construction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flash Powder
Flash powder is a pyrotechnic composition, a mixture of oxidizer and metallic fuel, which burns quickly and produces a loud noise regardless of confinement. It is widely used in theatrical pyrotechnics and fireworks (namely salutes, e.g., cherry bombs, M-80s, firecrackers, and cap gun shots) and was once used for flashes in photography. Different varieties of flash powder are made from different compositions; most common are potassium perchlorate and aluminium powder. Sometimes, sulfur is included in the mixture to increase the sensitivity. Early formulations used potassium chlorate instead of potassium perchlorate. Flash powder compositions are also used in military pyrotechnics when production of large amount of noise, light, or infrared radiation is required, e.g., missile decoy flares and stun grenades. History Lycopodium powder is a yellow-tan dust-like powder historically used as a flash powder. Today, the principal use of the powder is to create flashes or fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tihar (festival)
Tihar (also known as Deepawali and Yamapanchak) is a five-day Hindu festival celebrated in Nepal and the Indian states of Sikkim and West Bengal, particularly the towns of Darjeeling and Kalimpong, which host a large number of ethnic Indian Gorkha people. Tihar is analogous to the Indian festival of Diwali, the festival of lights, but some significant differences. Like with Diwali, Tihar is marked by lighting '' diyo'' inside and outside the home but unlike the Indian festival, the five days of Tihar include celebration and worship of the four creatures associated with the Hindu god of death Yama, with the final day reserved for people themselves. According to the Vikram Samvat calendar, the festival begins with Kaag (crow) Tihar on Trayodashi tithi of Kārtika '' kṛṣṇa'' pakṣa (the 13th day of the waning moon) and ends with Bhai Tika on Dwitiya tithi of Kārtika śukla pakṣa every year. In the Gregorian calendar, the festival falls sometime between Octob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosive
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be * chemical energy, such as nitroglycerin or grain dust * pressurized gas, such as a gas cylinder, aerosol can, or BLEVE * nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high explosives" and materials that deflagrate are said to be "low explosives". Explosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glassine
Glassine is a smooth and glossy paper that is air, water, and grease resistant. It is usually available in densities between . It is translucent unless dyes are added to color it or make it opaque. It is manufactured by supercalendering: after pressing and drying, the paper web is passed through a stack of alternating steel- and fiber-covered rolls called a supercalender at the end of the paper machine so that the paper fibers flatten facing in the same direction. Usage Glassine is most commonly used as a base for further silicone coating for manufacture of release liner. Glassine is also employed as an interleaving paper in bookbinding, especially to protect fine illustrations from contact with facing pages; the paper can be manufactured with a neutral pH, and can prevent damage from spilling, exposure, or rubbing. Glassine adhesive tape has been used in book repair. In chemistry, glassine is used as an inexpensive weighing paper. It is used in foodservice as a barrier b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eid Al-Fitr
, nickname = Festival of Breaking the Fast, Lesser Eid, Sweet Eid, Sugar Feast , observedby = Muslims , type = Islamic , longtype = Islamic , significance = Commemoration to mark the end of fasting in Ramadan , date = 1 Shawwal , date2019 = 4 June (Saudi Arabia and some other countries) 5 June (Pakistan and some other countries) , date2023 = 21 – 22 April , date2024 = 10 – 11 April , celebrations = Eid prayers, charity, social gatherings, festive meals, gift-giving, dressing up, Lebaran , relatedto = Ramadan, Eid al-Adha Eid al-Fitr (; ar, عيد الفطر, Eid al-Fiṭr, Holiday of Breaking the Fast, ) is the earlier of the two official holidays celebrated within Islam (the other being Eid al-Adha). The religious holiday is celebrated by Muslims worldwide because it marks the end of the month-long dawn-to-sunset fasting of Ramadan. It falls on the first day of Shawwal in the Islamic calendar; this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bamboo
Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, but it probably comes from the Dutch or Portuguese language, which originally borrowed it from Malay or Kannada. In bamboo, as in other grasses, the internodal regions of the stem are usually hollow and the vascular bundles in the cross-section are scattered throughout the stem instead of in a cylindrical arrangement. The dicotyledonous woody xylem is also absent. The absence of secondary growth wood causes the stems of monocots, including the palms and large bamboos, to be columnar rather than tapering. Bamboos include some of the fastest-growing plants in the world, due to a unique rhizome-dependent system. Certain species of bamboo can grow within a 24-hour period, at a rate of almost an hour (equivalent to 1 mm every ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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