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To believe a fact is not to learn it, in the sense that these terms may be applied to mechanical knowledge; to believe a proposition is not to have a conviction of its truth; and what is meant by learning mechanical principles is, as remarked in a previous place, to have them so fixed in the mind that they will involuntarily arise to qualify everything met with that involves mechanical movement. For this reason it has been urged that learners should begin by first acquiring a clear and fixed conception of power, and next of the nature and classification of machines, for without the first he cannot reach the second."Perhaps already disposed of elsewhere?" Hetty suggested.
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FORE:IV.

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FORE:Machinery of application.

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FORE:

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ONE:"Gently, gently," he growled. "Let us look at those gems. I have them here. See, are those the ones you passed over to me?"CHAPTER V. PLATO AS A REFORMER.
TWO:

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ONE:It will scarcely be expected that any part of the present work, intended mainly for apprentice engineers, should relate to designing machines, yet there is no reason why the subject should not to some extent be treated of; it is one sure to engage more or less attention from learners, and the study of designing machines, if properly directed, cannot fail to be of advantage.The principal improvements and changes in machine fitting at the present time is in the application of special tools. A lathe, a planing machine, or drilling machine as a standard machine, must be adapted to a certain range of work, but it is evident that if such tools were specially arranged for either the largest or the smallest pieces that come within their capacity, more work could be performed in a given time and consequently at less expense. It is also evident that machine tools must be kept constantly at work in order to be profitable, and when there are not sufficient pieces of one kind to occupy a machine, it must be employed on various kinds of work; but whenever there are sufficient pieces of the same size upon which certain processes of a uniform character are to be performed, there is a gain by having machines constructed to conform as nearly as possible to the requirements of special work, and without reference to any other.
FORE:A carriage moving on angular ways always moves steadily and easily, without play in any direction until lifted from its bearing, which rarely happens, and its lifting is easily opposed by adjustable gibs. A carriage on a flat shear is apt to have play in a horizontal direction because of the freedom which must exist to secure easy movement. In the case of tracks, it may also be mentioned that the weight of a carriage acts as a constant force to hold it steady, while with a flat shear the weight of a carriage is in a sense opposed to the ways, and has no useful effect in steadying or guiding. The rigidity and steadiness of tool movement is notoriously in favour of triangular tracks, so much so that nearly all American machine tool-makers construct lathes in this manner, although it adds no inconsiderable cost in fitting.

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FORE:"We must try the back gate," Leona suggested.CHAPTER XXXII. SLOTTING MACHINES.

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FORE:And the answer was:

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ONE:



THREE:At Blauwput, near Louvain, where, according to the Germans, there had been also shooting, many houses were set on fire and the men placed in a row. It was then announced that by way of punishment every fifth man would be shot. When the Germans counted as tenth the father of a large family, that man fainted, and they simply killed number eleven, a Capuchin.

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THREE:Mayst Thou from baneful IgnoranceWith regard to the propagation of the race, Platos methods are avowedly borrowed from those practised by bird-fanciers, horse-trainers, and cattle-breeders. It had long been a Greek custom to compare the people to a flock of sheep and their ruler to a shepherd, phrases which still survive in ecclesiastical parlance. Socrates habitually employed the same simile in his political discussions; and the rhetoricians used it as a justification of the governors who enriched themselves at the expense of those committed to their charge. Plato twisted the argument out of their hands and showed that the shepherd, as such, studies nothing but the good of his sheep. He failed to perceive that the parallel could not be carried out in every detail, and that, quite apart from more elevated considerations, the system which secures a healthy progeny in the one case cannot be transferred to creatures possessing a vastly more complex and delicate organisation. The destruction of sickly and deformed children could only be justified on the hypothesis that none but physical qualities were of any value to the community. Our philosopher forgets his own distinction between soul and body just when he most needed to remember it.

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THREE:They reached the kitchen window and looked out. There was a figure there, and what looked like another one in the background. A lantern stood on the flags; the first figure pitched something on the ground that looked like a coil of rope.I. Reach Us Below:

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The German officers at the commander's office were elated in consequence of the reports received, and also told me that Antwerp would not be able to hold out for more than two days. They also tried to explain this to the people in the hall who were waiting for their passports. I followed the conversation, but not very closely, and one of the officers explained on a map what he asserted. Willy-nilly, because they had to get their passports, the waiting people listened to him. Suddenly I heard him say: "And after all we might have surrounded Antwerp also on the north by crossing Netherland territory, as we did when we invaded Belgium."I had walked another three miles, when a big crowd of fugitives met me. They seemed to have come a long way, for the majority could hardly walk on, and had taken off their shoes and boots, on account of the scorching heat, going on barefooted in the shade of the tall trees. It was a procession, numbering hundreds of men, women, and children. The aged were supported, the babies carried. Most of them had a small parcel on their back or under their arm. They seemed tired to death, had dark red faces, and betrayed great fear and nervousness. I crossed the road to speak to them, and as soon as they noticed it the whole crowd, numbering hundreds of people, stood still, creeping closer together, women and girls trying hard to hide themselves behind the men, and these doffed their caps timidly.In regard to premiums, it is a matter to be determined by the facilities that a work may afford for teaching apprentices. To include experience in all the departments of an engineering establishment, within a reasonable term, none but those of unusual ability can make their services of sufficient value to offset what they receive; and there is no doubt but that premium engagements, when the amount of the premium is based upon the facilities afforded for learning, are fair and equitable.
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