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The term gearing, which was once applied to wheels, shafts, and the general mechanism of mills and factories, has now in common use become restricted to tooth wheels, and is in this sense employed here. Gearing as a means of transmitting motion is employed when the movement of machines, or the parts of machines, must remain relatively the same, as in the case of the traversing screw of an engine lathewhen a heavy force is transmitted between shafts that are near to each other, or when shafts to be connected are arranged at angles with each other. This rule is of course not constant, except as to cases where positive relative motion has to be maintained. Noise, and the liability to sudden obstruction, may be reasons for not employing tooth wheels in many cases when the distance between and the position of shafts would render such a connection the most durable and cheap. Gearing under ordinary strain, within limited speed, and when other conditions admit of its use, is the cheapest and most durable mechanism for transmitting power; but the amount of gearing employed in machinery, especially in Europe, is no doubt far greater than it will be in future, when belts are better understood.Whether neutral or foreigner, no one could help being deeply moved. Men and women, boys and girls, pressed once more through the German fence, just to shake hands with someone they had recognised. No wailing followed, but when hands were gripped, with a suppressed sob, they said:
ONE:CHAPTER XIV. HYDRAULIC APPARATUS FOR TRANSMITTING POWER.
TWO:Maitrank grinned in sinister fashion. 更多 »
TWO:The fellow was lying smoothly enough, but Bruce knew that he was lying. There would be awkward explanations presently, when Hetty Lawrence came to speak; for instance, how would it tally with the pretty story that Balmayne was bringing the unconscious form of Maitrank by the garden gate when he was found in the street?"What? What? Do you dare to call it stealing, what we Germans take here in Bruges?"
TWO:The division of labour, that system upon which we may say our great industrial interests are founded, is in machine fitting promoted in a wonderful degree by the use of gauging implements. If standard dimensions can be maintained, it is easy to see that the parts of a machine can be constructed by different workmen, or in different shops, and these parts when assembled all fit together, without that tedious and uncertain plan of try-fitting which was once generally practised. There are, it is true, certain kinds of fitting which cannot well be performed by gauges; moving flat surfaces, such as the bearings of lathe slides or the faces of steam engine valves, are sooner and better fitted by trying them together and scraping off the points of contact; but even in such cases the character of the work will be improved, if one or both surfaces have been first levelled by gauging or surface plates.
TWO:Then, pushing off in the rubber boat, he sat still, his dry clothes in a compact bundle in the boat thwarts, while Jeff let the wind and tide-run carry his amphibian out of the channel to where he could get sea space for a start, to get the amphibian pontoons on the step from which, with his silent cargo of human tragedy, Jeff lifted into air and went out of sight, southbound.
TWO:
TWO:with honour may repay Thee,
TWO:404
TWO:Nothing but old overalls and some tools on the floor, Dick commented.
TWO:Two passages in Aristotles writings have been supposed to give evidence of his admiration for Alexander. One is the description of the magnanimous man in the Ethics. The other is a reference in the Politics to an ideal hero, whose virtue raises him so high above the common run of mortals that their duty is to obey him as if he were a god. But the magnanimous man embodies a grave and stately type of character quite unlike the chivalrous, impulsive theatrical nature of Alexander,177 while probably not unfrequent among real Hellenes; and the god-like statesman of the Politics is spoken of rather as an unattainable ideal than as a contemporary fact. On the whole, then, we must conclude that the intercourse between these two extraordinary spirits has left no distinct trace on the actions of the one or on the thoughts of the other.

[育儿宝典]
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Suspicious Sandy, Dick began to chant a rhyme he invented on the spur of the moment, Suspicious Sandy, Suspicious Sandy, he thinks everything is like April-Fool candy! Nothing is what it seems to be and soon hell suspect both Larry and me!So far as he could see there were no signs of dust or desolation about the corner house. The hall was clean and bright, there was a thick carpet on the stairs. Every door was shut save one on the first floor, into which the fair beauty with the lovely hair led the way. Four or five gas jets were flaring away with a hissing roar. A draught from somewhere made them flicker restlessly on a large room absolutely devoid of furniture save for an old-fashioned four-post bedstead in the middle. The air was close and stuffy, as if the window had not been opened for months. There were barred shutters before them.We have now to consider how the philosophy of the empire was affected by the atmosphere of supernaturalism which surrounded it on every side. Of the Epicureans it need only be said that they were true to their trust, and upheld the principles of their founder so long as the sect itself continued to exist. But we may reckon it as a first consequence of the religious reaction, that, after Lucretius, Epicureanism failed to secure the adhesion of a single eminent man, and that, even as a popular philosophy, it suffered by the competition of other systems, among which Stoicism long maintained the foremost place. We showed in a former chapter how strong a religious colouring was given to their teaching by the earlier Stoics, especially Cleanthes. It would appear, however, that Panaetius discarded many of the superstitions accepted by his predecessors, possibly as a concession to that revived Scepticism which was so vigorously advocated just before his time; and it was under the form imposed on it by this philosopher that Stoicism first gained acceptance in Roman society; if indeed the rationalism of Panaetius was not itself partly determined by his intercourse with such liberal minds as Laelius and the younger Scipio. But Posidonius, his successor, already marks the beginning of a reactionary movement; and, in Virgil, Stoical opinions are closely associated with an unquestioning acceptance of the ancient Roman faith. The attitude of Seneca is much more independent; he is full of contempt for popular superstition, and his god is not very distinguishable from the order of Nature. Yet his tendency towards clothing philosophical instruction in religious terms deserves notice, as a symptom of the superior facility with which such terms lent themselves to didactic purposes. Acceptance of the universal order became more intelligible under the name of obedience to a divine decree; the unity of the human race and the obligations resulting therefrom242 impressed themselves more deeply on the imaginations of those who heard that men are all members of one body; the supremacy of reason over appetite became more assured when its dictates were interpreted as the voice of a god within the soul.375
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