The Hand-book of Artillery: For the Service of the United States (army and Militia) : with the Manual of Heavy Artillery, Including that of the New Iron Carriage

D. Van Nostrand, 1865 - 250 pàgines

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Pàgina 182 - Grains 1 Dram. 16 Drams 1 Ounce. 16 Ounces 1 Pound. 28 Pounds 1 Quarter. 4 Quarters or 100 pounds 1 Hundred Weight 20 Hundredweight 1 Ton.
Pàgina 177 - Add into one sum, the areas of the two ends and the mean proportional between them; take...
Pàgina 19 - It is the excess of weight of the part in rear of the trunnions over that in front ; it is measured by the lifting force in pounds, which must be applied at the rear of the base-ring to balance the piece when suspended freely on the axis of the trunnions?
Pàgina 111 - Prepare the ground for the base of the pile by raising it above the surrounding ground so as to throw off the water ; level it, ram it well, and cover it with a layer of screened sand.
Pàgina 184 - ... suspended by a string which is not subject to stretch, and on which are marked the different required lengths, will answer the above purpose, may be easily acquired, and should be frequently compared with an accurate standard in the adjutant's possession.
Pàgina 97 - The sentinel or guard at a magazine, when it is open, should have no fire-arms, and every one who enters the magazine should take off his shoes, or put socks over them; no sword or cane, or anything which might occasion sparks, should be carried in. The windows should have inside shutters of copper wire-cloth.
Pàgina 17 - The scale passes through a slit in a piece of steel, with which it is connected by a screw, forming a pivot on which the scale can vibrate laterally. This piece of steel terminates in pivots, by means of which the pendulum is supported on the seat attached to the gun, and is at liberty to vibrate in the direction of the axis of the piece. The seat is of metal, and is fastened to the base of the breech by...
Pàgina 174 - A<, and consequently &v, the more nearly will That is, a variable force is measured by the limit of the ratio of the velocity caused by it to the time of causing it. 224. The momentum of a body is its quantity of motion, and is measured by the product of the mass of the body by its velocity. For the motion of a single particle is its velocity, and the motion of any number of particles, having the same velocity, is obviously as much greater as the number of particles is greater. Hence the whole motion...

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