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The Chemistry of Powder and Explosives - Sciencemadness Dot Org

The Chemistry of Powder and Explosives - Sciencemadness Dot Org

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CHINESE FIRECRACKERS 111<br />

English Crackers or Grasshoppers<br />

<strong>The</strong>se devices are old; they were described by John Bate <strong>and</strong><br />

by Hanzelet Lorrain. English crackers are represented in the<br />

lower right-corner <strong>of</strong> Figure 23, reproduced from Lorrain's book<br />

<strong>of</strong> 1630. <strong>The</strong>y are used in bombshells <strong>and</strong>, as Lorrain used them,<br />

in rockets, where they jump about in the air producing a series<br />

<strong>of</strong> flashes <strong>and</strong> explosions. Children shoot them on the ground<br />

like firecrackers where their movements suggest the behavior <strong>of</strong><br />

grasshoppers.<br />

English crackers are commonly loaded with granulated gunpowder,<br />

tamped into paper pipes like those from which pinwheels<br />

are made. <strong>The</strong> loaded pipes are s<strong>of</strong>tened by moisture in<br />

the same way, passed between rollers to make them flatter,<br />

folded in frames, <strong>and</strong>, for the best results, tied each time they are<br />

folded <strong>and</strong> then tied over the whole bundle. <strong>The</strong>y are generally<br />

supplied with black match for lighting. <strong>The</strong>y produce as many<br />

explosions as there are ligatures.<br />

Chinese Firecrackers<br />

Firecrackers have long been used in China for a variety <strong>of</strong><br />

ceremonial purposes. <strong>The</strong> houseboat dweller greets the morning<br />

by setting <strong>of</strong>f a bunch <strong>of</strong> firecrackers, for safety's sake in an iron<br />

kettle with a cover over it, to keep all devils away from him<br />

during the day. For their own use the Chinese insist upon firecrackers<br />

made entirely <strong>of</strong> red paper, which leave nothing but red<br />

fragments, for red is a color particularly <strong>of</strong>fensive to the devils.<br />

Firecrackers for export, however, are commonly made from tubes<br />

<strong>of</strong> cheap, coarse, brown paper enclosed in colored wrappers.<br />

Thirty years ago a considerable variety <strong>of</strong> Chinese firecrackers<br />

was imported into this country. <strong>The</strong>re were "M<strong>and</strong>arin crackers,"<br />

made entirely from red paper <strong>and</strong> tied at the ends with silk<br />

thread; cheaper crackers plugged at the ends with clay (<strong>and</strong><br />

these never exploded as satisfactorily); "lady crackers," less<br />

than an inch long, tied, <strong>and</strong> no thicker than a match stem; <strong>and</strong><br />

"cannon crackers," tied with string, 6, 8, <strong>and</strong> 12 inches long,<br />

made <strong>of</strong> brown paper with brilliant red wrappers. All these were<br />

loaded with explosive mixtures <strong>of</strong> the general nature <strong>of</strong> black<br />

powder, were equipped with fuses <strong>of</strong> tissue paper twisted around<br />

black powder, <strong>and</strong> were sold, as Chinese firecrackers are now<br />

sold, in bunches with their fuses braided together. <strong>The</strong> composi-

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