The Journal of the United Service Institution, Volume 2W. Mitchell and Son, 1859 |
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Common terms and phrases
13-inch shells 3-foot shells advantage army artillery attack axis ball barracks barrel batteries besiegers boat breach British bullet cable Capt Captain casemates cause Cavalry cavity centre of gravity charge Colonel construction corps counterscarp crater Crimea cubic feet cylinder defence depth diameter distance ditch effect enemy Engineers equal European experiments explosion fire Foot Guards force fortification French gabions garrison glacis greater grooves gunpowder guns Household Cavalry Hythe inch increased India Infantry iron labour length less Lieut means miles military militia mortar motion native necessary operations parapet Peter Barlow portion practice present pressure principle produce projectile proportion railway range reefing regiments resistance result rifle rotation round sail screw-vessels Sebastopol Sepoy ship shot side siege soldier space square square mile strain sufficient thickness tons topsail troops velocity vessel walls weight Whitworth rifle Woolwich yardarm yards
Popular passages
Page 234 - And he made in Jerusalem engines, invented by cunning men, to be on the towers and upon the bulwarks, to shoot arrows and great stones withal.
Page 309 - ... tensio sic vis, it follows, that the external circumference, and every successive circular lamina, from the interior to the exterior surface, offers a less and less resistance to the interior strain : the law of which decrease of resistance it is our present object to investigate. In the first place, it is obvious that whatever extension the cylinder or ring may undergo, there will be still in it the same quantity of metal, or, which is the same, the area of the circular ring, formed by a section...
Page 26 - A month afterward more than fifty of them were dead, and the few remaining ones were dying. ... It was only necessary to open, in the winter, part of the ventilating apparatus near the ceiling, which had been prepared for the summer, and the room became at once salubrious.
Page 25 - ... would be best secured by making the new room nearly what an English gentleman's drawingroom is. For warming it, two ordinary drawing-room grates were put in as close to the floor as possible, and with low chimney openings, that the heated air in the room should not escape by the chimney, while the windows and other openings in the walls above were made as close as possible.
Page 10 - ... a most monotonous and uninteresting description, so much so that you cannot increase their amount without wearying and disgusting him. All he has to do is under restraint: he is not like a working man or an artisan ; a working man...
Page 367 - ... to its numerous inmates. After one or two unsuccessful attempts to place the little frail bark fairly upon the surface of the water, the command was at length given to unhook ; the tackle at the stern was in consequence immediately cleared ; but the ropes at the bow having got foul, the sailor there found it impossible to obey the order.
Page 307 - When the inner diameter of the 10-inch cylinder becomes 20 inches, the thickness must diminish from 10 to 7'32 inches, the cross-section of the cylinder remaining the same. This cross-section was originally 800 circular inches, 800 being the difference between the squares of 30 inches, the outer diameter, and 10 inches, the inner, or 900 minus 100. When stretched, the area of the cross-section must continue to be 800 round inches.
Page 25 - Unhappily, however, it was believed that the objects would be best secured by making the new room nearly what an English, gentleman's drawing-room is. For warming it, two ordinary drawing-room...
Page 367 - Although Captain Cobb had used every precaution to diminish the danger of the boat's descent by stationing a man with an axe to cut away the tackle from either extremity, should the slightest...
Page 311 - In 1855, Dr. Hart, of Trinity College, Dublin, investigated the problem. His calculations (see note "W, p. 259 of Mr. . R. Mallet's work on the Construction of Artillery) give greater strength to the inner parts, but still less to the outer, than those of Professor Barlow. Both these gentlemen, as well as General Morin, and Dr. Robinson the astronomer, who have also studied the question, agree that no possible thickness can enable a cylinder to bear a pressure from...