matrimonioper.com/WB/hairs.htm sy enough to do, by means of chlorate of potassium and caustic potash. The <br>former is a salt which appears under the form of white crystals; when raised to a temperature of 400 degrees it is transformed into chlorure of potassium, and the oxygen which it contains is entirely <br>liberated. Now twenty-eight pounds of chlorate of potassium produces seven cheap ugg boots pounds of oxygen, or 2,400 litres 鈥?the quantity necessary for the travelers during twenty-four hours.Caustic potash has a <br>great affinity for carbonic acid; and it is sufficient to shake it in order for it to seize upon the acid and form bicarbonate of cheap ugg boots potassium. By these two ugg boots uk means they would be enabled to restore to the <br>vitiated air its life- supporting properties.It is necessary, ugg boots sale however, to add that the experiments had hitherto been made in anima vili. Whatever its scientific accuracy was, they were at present <br>ignorant how it would answer with human beings. The honor of putting it to the proof was energetically claimed by cheap ugg boots outlet J. T. Maston.鈥淪ince I am not to go,鈥?said the brave artillerist, 鈥淚 ugg sale may at least bailey button uggs <br>live for a week in the projectile.鈥滻t would have been hard to refuse him; so they consented to his wish. A sufficient quantity of chlorate of potassium and of caustic potash was placed at his <br>disposal, together with provisions for eight days. And having shaken hands with his friends, on the 12th of November, at six o鈥檆lock A.M., after strictly informing them not to open his prison before <br>the 20th, at six o鈥檆lock P.M., he slid down the projectile, the plate of which was at once hermetically sealed. What did he do with himself during that week? They could get no information. The <br>thickness of the walls of the projectile prevented any sound reaching from the inside to the cheap ghd outside. On the 20th of November, at six P.M. exactly, the plate was opened. The friends of J. T. Maston <br>had been all along in a state of much anxiety; but they were promptly reassured on hearing a jolly voice shouting a boisterous hurrah.Presently afterward the secretary of the Gun Club appeared at the <br>top of the cone in a triumphant attitude. He had grown fat!Chapter 24 The Telescope of the Rocky MountainsOn the 20th of October in the preceding year, after the close of the subscription, They reached town by three_14119 the <br>president of the Gun Club had credited the Observatory of Cambridge with the necessary sums for the construction of a gigantic optical instrument. This instrument was designed for the purpose of <br>rendering visible on the surface of the moon any object exceeding nine feet in diameter.At the period when the Gun Club essayed their great experiment, such instruments had reached a high degree of <br>perfection, and produced some magnificent results. Two telescopes in particular, at this time, were possessed of remarkable power and of gigantic dimensions. The first, constructed by Herschel, was <br>thirty-six feet in length, and had an object-glass of four feet six inches; it possessed a magnifying power of 6,000. The second was raised in Ireland, in Parsonstown Park, and belongs to Lord Rosse. <br>The length of this tube is forty-eight feet, and the diameter of its object-glass six feet; it magnifies 6,400 times, and required an immense erection of brick work and masonry for the purpose of <br>working it, its weight being twelve and a half tons.Still, despite these colossal dimensions, the actual enlargements scarcely exceeded 6,000 times in round numbers; consequently, the moon was brought <br>within no nearer an apparent distance than thirty-nine miles; and objects of less ghd hair straightener than sixty feet in diameter, unless they were of very considerable length, were still imperceptible.In the present <br>case, dealing with a projectile nine feet in diameter and fifteen feet long, it became necessary to bring the moon within an apparent distance of five miles at most; and for that purpose to establish <br>a magnifying power of 48,000 times.Such was the question proposed to the Observatory of Cambridge, There was no lack of funds; the difficulty was purely one o
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