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Their sizes can range from an inch to about 6 inches (15 cm) long and 1 ⁄ 8 to 3 ⁄ 4 inch (3.2 to 19.1 mm) around, not including the stick. The smaller variety of these rockets are also commonly referred to as "Bottle Rockets" due to the commonality in which people use a bottle as a launching platform.
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Fireworks shell. Colors in fireworks are usually generated by pyrotechnic stars—usually just called stars—which produce intense light when ignited. Stars contain four basic types of ingredients. A fuel; An oxidizer—a compound that combines with the fuel to produce intense heat; Color-producing salts (when the fuel itself is not the colorant)
This engraving shows a 12-pounder U.S. shrapnel shell c. 1865. It is fitted with a Borman fuze. In the cutaway view, the dark grey is the wall of the shell, the medium grey is sulphur resin, the light grey are the musket balls, and the black is the bursting charge.
A Roman candle is a traditional type of firework that ejects one or more stars or exploding shells. Roman candles come in a variety of sizes, from 6 mm (0.24 in) diameter for consumers, up to 8 cm (3.1 in) diameter in professional fireworks displays. Roman candles are banned in some countries as they have a tendency to malfunction. [1]
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A mixture of designations were in use for land artillery from the First World War (such as the BL 60-pounder gun, RML 2.5 inch Mountain Gun, 4 inch gun, 4.5 inch howitzer) through to the end of World War II (5.5 inch medium gun, 25-pounder gun-howitzer, 17-pounder tank gun), but the majority of naval guns were by caliber. After the end of World ...