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Modern engineers of the abler class are so thoroughly in accord in this matter of ornamentation, both in opinion and practice, that the subject hardly requires to be mentioned, and it will be no disadvantage for a learner to commence by cultivating a contempt for whatever has no useful purpose. Of existing practice it may be said, that in what may be called industrial machinery, the amount of ornamentation is inverse as the amount of engineering skill employed in preparing designs. このページの先頭です
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TWO:They took me to two officers who stood near the bridge, and told them that I "pretended" to be a Netherland journalist. Having proved this by my papers, the officers gave me an escort of three men, who conducted me to the bridge-commander, on the other side of the Meuse.It is evident that what Plotinus says about beauty and love was suggested by the well-known passages on the same subject in the Phaedrus and the Symposium. His analysis of aesthetic emotion has, however, a much more abstract and metaphysical character than that of his great model. The whole fiction of an antenatal existence is quietly let drop. What the sight of sensible beauty awakens in a philosophic soul is not the memory of an ideal beauty beheld in some other world, but the consciousness of its own idealising activity, the dominion which it exercises over unformed and fluctuating matter. And, in all probability, Plato meant no more than thisin fact he hints as much elsewhere,433but he was not able or did not choose to express himself with such unmistakable clearness.
TWO:The extreme nicety with which gauging implements are fitted seems at first thought to be unnecessary, but it must be remembered that a cylindrical joint in ordinary machine fitting involves a precision almost beyond the sense of feeling, and that any sensible variation in turning gauges is enough to spoil a fit.In every case where there can be a question as to whether gearing shafts or belts will be the best means of transmitting power, the several conditions named will furnish a solution if they are properly investigated and understood. Speed, noise, or angles may become determinative conditions, and are such in a large number of cases; first cost and loss of power are generally secondary conditions. Applying these tests to cases where belts, shafts, or wheels may be employed, a learner will soon find himself in possession of knowledge to guide him in his own schemes, and enable him to judge of the correctness of examples that come under his notice.
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