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I stood still, dumb, aghast, unable to utter a word. Then I went to a sergeant who was also looking on and laughing; and, trembling all over, I said:In constructing patterns where it is optional whether to employ cores or not, and in preparing drawings for castings which may have either a ribbed or a cored section, it is nearly always best to employ cores. The usual estimate of the difference between the cost of moulding rib and cored sections, as well as of skeleton and cored patterns, is wrong. The expense of cores is often balanced by the advantage of having an 'open mould,' that is accessible for repairs or facing, and by the greater durability and convenience of the solid patterns. Taking, for example, a column, or box frame for machinery, that might be made either with a rib or a cored section, it would at first thought seem that patterns for a cored casting would cost much more by reason of the core-boxes; but it must be remembered that in most patterns labour is the principal expense, and what is lost in the extra lumber required for a core-box or in making a solid pattern is in many cases more than represented in the greater amount of labour required to construct a rib pattern.
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By Stephen Brock In Lifestyle, Photography Posted May 24th, 2013 12 Comments
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FORE:Draughting, or drawing, as it is more commonly called, is a means by which mental conceptions are conveyed from one person to another; it is the language of mechanics, and takes the place of words, which are insufficient to convey mechanical ideas in an intelligible manner.
FORE:She pondered over this discovery as she went home. It might mean a lot, it might mean a very little. It was more than possible that Mr. Charlton had left a caretaker in possession of the house with a view to avoiding further incursions upon his possessions. If so, that casual way of boiling a kettle was quite the course a caretaker would adopt.What happened at Landen made a very deep222 impression upon me; it shocked me more than all the terrible things which I had seen during the war and all the dangers which I went through. When the train went on again, and the soldiers began to speak to me once more, I was unable to utter a word and sat there musing.
"When I have finished," Hetty replied. "You heard Dr. Bruce's message. He said that child should not be left. You may urge that I am sufficient, but there is a time for a mother's care. If I had my way you should not go."I was not allowed to return by bicycle, and left it at a caf at the crossing of the roads to Tongres and Riemst. A couple of days later the Germans had already abstracted the tyres.They were gambling in earnest, there were hundreds of pounds in notes and gold on the dull green cloth. A handsome youth, who was ruining himself and his estate as speedily as possible, sat easy and collected next to a young society lady, whose husband would have been shot rather than see her in such company. A pretty marchioness, the daughter of an American millionaire, was plunging greedily and losing as steadily. Countess Lalage smiled with perfect equanimity as she saw her own counters vanishing. She pushed over two small notes with a little sigh. She did not look as if they were the last she had in the world, but they were.In his criticism on the ideal theory, Aristotle argues that it is unproved; that the consequences to which it leads would be rejected by the idealists themselves; that it involves a needless addition to the sum of existence; that it neither explains the origin of things nor helps us to understand them, while taking away from them their substantial reality; that the Ideas are merely sensible objects hypostasised, like the anthropomorphic divinities of primitive men; that, to speak of them as patterns, in whose likeness the world was created, is a mere idle metaphor; that, even assuming the existence of such patterns, each individual must be made in the likeness, not of one, but of many ideasa human being, for instance, must be modelled after the ideal biped and the ideal animal, as well as after the ideal man; while many of the ideas themselves, although all are supposed to exist absolutely, must be dependent on other and simpler types; finally, that, assuming an idea for every abstract relation, there must be ideas to represent the relation between every sensible object and its prototype, others for the new relations thus introduced, and so on to infinity.The Epicurean cosmology need not delay us long. It is completely independent of the atomic theory, which had only been introduced to explain the indestructibility of matter, and, later on, the mechanism of sensation. In describing how the world was first formed, Epicurus falls back on the old Ionian meteorology. He assumes the existence of matter in different states of diffusion, and segregates fluid from solid, light from heavy, hot from cold, by the familiar device of a rapid vortical movement.168 For the rest, as we have already noticed, Epicurus gives an impartial welcome to the most conflicting theories of his predecessors, provided only that they dispense with the aid of supernatural intervention; as will87 be seen by the following summary, which we quote from Zeller:
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