stick+sulphur
31History of gunpowder — Gunpowder was the first chemical explosive and the only one known until the invention of nitrocellulose, nitroglycerin, smokeless powder and TNT in the 19th century. However, prior to the invention of gunpowder, many incendiary and burning… …
32List of British ordnance terms — This article explains terms used to describe the British Armed Forces ordnance (i.e.: weapons and ammunition) used in World War I and World War II. Note that the terms may have slightly different meanings in the military of other countries.BDBD… …
33Bird intelligence — deals with the definition of intelligence and its measurement as it applies to birds. Traditionally, birds have been considered inferior in intelligence to mammals, and derogatory terms such as bird brains have been used colloquially in some… …
34Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
35Congreve — Con greve, n. [After Sir William Congreve, the inventor.] 1. Short for {Cogreve rocket}, a powerful form of rocket formerly used in war, either in the field or for bombardment. In the former case it was armed with shell, shrapnel, or other… …
36Congreve match — Congreve Con greve, n. [After Sir William Congreve, the inventor.] 1. Short for {Cogreve rocket}, a powerful form of rocket formerly used in war, either in the field or for bombardment. In the former case it was armed with shell, shrapnel, or… …
37Congreve rocket — Rocket Rock et, n. [It. rocchetta, fr. rocca a distaff, of German origin. Named from the resemblance in shape to a distaff. See {Rock} a distaff.] 1. An artificial firework consisting of a cylindrical case of paper or metal filled with a… …
38Rocket — Rock et, n. [It. rocchetta, fr. rocca a distaff, of German origin. Named from the resemblance in shape to a distaff. See {Rock} a distaff.] 1. An artificial firework consisting of a cylindrical case of paper or metal filled with a composition of… …
39Acid rain — is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the… …
40Mongolia — This article is about the modern sovereign state. For other uses, see Mongolia (disambiguation). Mongolia …
