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Pagina 52 - For I dipt into the future, far as human eye could see, Saw the vision of the world, and all the wonder that would be; Saw the heavens fill with commerce, argosies of magic sails, Pilots of the purple twilight, dropping down with costly bales; Heard the heavens fill with shouting, and there rained a ghastly dew From the nations...
Pagina 264 - As for God, his way is perfect: the word of the LORD is tried: he is a buckler to all those that trust in him. 31 For who is God save the LORD? or who is a rock save our God? 32 It is God that girdeth me with strength, and maketh my way perfect. 33 He maketh my feet like hinds' feet, and setteth me upon my high places.
Pagina 399 - This 08 per cent, is not only waste in itself, but it wastes the power of the remaining 32 per cent. It wastes it mechanically, by using up a large portion of the mechanical force of the useful gases. The waste of gunpowder issues from the gun with much higher velocity than the projectile; and if it be remembered that in 100 Ib.
Pagina 330 - Schonbein are very intimately mixed in a suitable apparatus in the proportions originally indicated by that chemist, ie, three parts by weight of sulphuric acid to one of nitric acid. The mixture is always prepared some time before it is required, in order that it may become perfectly cool. The cotton is immersed in a bath of the mixed acids, one skein at a time, and stirred about for a few minutes, until it has become thoroughly saturated with the acids ; it is then transferred to a shelf in this...
Pagina 98 - God bless the army, bless their coats of scarlet, God bless the navy, bless the Princess Charlotte, God bless the guards, though worsted Gallia scoff, God bless their pig-tails, tho...
Pagina 398 - BvATcely differing in appearance from unchanged cotton, it may be distinguished from it by its harshness, by the crepitating sound which it yields when pressed by the hand, by its having lost the property of depolarisation which ordinary cotton possesses, and by its electric condition. Iodine dissolved in a solution of iodide of potassium affords a certain means of distinguishing explosive from ordinary cotton. If the former is moistened with this iodine solution, and...
Pagina 396 - As to advantage in weight of gun, the fact of the recoil being less in the ratio of 2 : 3 enables a less weight of gun to be employed, as well as a shorter gun, without the disadvantage to practice arising from lightness of gun. As regards durance of gun, bronze and cast-iron guns have been fired 1,000 rounds without in the least affecting the endurance of the gun.
Pagina 330 - At the expiration of forty-eight hours the gun-cotton is transferred from the jars to a centrifugal machine, by the aid of which the excess of acid is removed as perfectly as is possible by mechanical means, the gun-cotton being afterwards only slightly moist to the touch. The skeins are then immersed singly into water, and moved about briskly, so as to become completely saturated with it as quickly as possible.
Pagina 399 - ... the refuse of gunpowder itself. There is yet another peculiar feature of gun-cotton. It can be exploded in any quantity instantaneously. This was once considered its great fault; but it was only a fault when we were ignorant of the means to make that velocity anything we pleased.
Pagina 330 - The same precaution is also taken with the dippingtrough, as considerable heat is generated during the first saturation of the cotton with the acids. At the expiration of forty-eight hours the gun-cotton is transferred from the jars to a centrifugal machine, by the aid of which the excess of acid is removed as perfectly as is possible by mechanical means, the gun-cotton being afterwards only slightly moist to the touch.