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One not accustomed to manual labour will, after commencing, find his limbs aching, his hands sore; he will feel exhausted both at the beginning and at the end of a day's work. These are not dangerous symptoms. He has only to wait until his system is built up so as to sustain this new draught upon its resources, and until nature furnishes a power of endurance, which will in the end be a source of pride, and add a score of years to life. Have plenty of sleep, plenty of plain, substantial food, keep the skin clean and active, laugh at privations, and cultivate a spirit of self-sacrifice and a pride in endurance that will court the hardest and longest efforts. An apprentice who has not the spirit and firmness to endure physical labour, and adapt himself to the conditions of a workshop, should select some pursuit of a nature less aggressive than mechanical engineering.

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Other reasons for the extended and general use of steam as a power, besides those already named, are to be found in the fact that no other available element or substance can be expanded to a given degree at so small a cost as water; and that its temperature will not rise to a point injurious to machinery, and, further, in the very important property of lubrication which steam possesses, protecting the frictional surfaces of pistons and valves, which it is impossible to keep oiled because of their inaccessibility or temperature.Dear Friend And Partner,--At last the luck of the deuce has departed and my virtue has its own reward. I have found my man. At first my man blustered, but logic, mon cher, logic gets the best of temper always. I parted with him and he parted with 400. In sovereigns. Mark the cunning of the man! No notes or cheques for him. But money in cash I dare not send to you. Therefore I have changed my gold for notes, and 200 in forty lovely crisp bits of paper I forward herewith. They are numbered from 190753 to 190792. This I tell you for precaution's sake. I am waiting for the cipher from K and this I will enclose. Next Saturday I propose to salute you. Till then with my most distinguished admiration,
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TWO:The man behind staggered back and muttered something that sounded like admiration. Ren Lalage stepped inside and shut the door.First. Gravity wheels, acting directly from the weight of the water which is loaded upon a wheel revolving in a vertical plane, the weight resting upon the descending side until the water has reached the lowest point, where it is discharged.
FORE:"Certainly not," Bruce agreed. "I happen to know an expert who told me so. It took my fancy and I gave ten pounds for it, which, I understand, is about a tenth of its full value."And over these nervous and terrified thousands at Maastricht rolled from afar the dull roar of the guns, thunder-like bursts from which had frightened them so terribly.
FORE:There I was left! After waiting a while I rang the bell once more, and once more the little shutter was opened in the same timid manner.
FORE:"My dear girl, what I have just told you proves the contrary. Much as I owe to coincidence, I am not going to swallow that. Now I have not so much as taken the trouble to look at that synopsis which was pigeonholed in my desk a long time ago. It would be useless to look for it."
FORE:Examining machines made by the best designers, it will be found that their dimensions bear but little if any reference to calculated strains, especially in machines involving rapid motion. Accidents destroy constants, and a draughtsman or designer who does not combine special and experimental knowledge with what he may learn from general sources, will find his services to [89]be of but little value in actual practice.
FORE:It was good to be with him there, to feel the pressure of his hand, and to look into his keen, resolute face. With Gordon by her side Hetty felt equal to meeting any terrors. Yet after the lapse of a few hours the whole thing seemed so vague and intangible that she hesitated to speak.
FORE:Turning back once more from art and literature to philosophy, is it not abundantly clear that if the Greeks speculated at all, they must at first have speculated according to some such method as that which history proves them to have actually followed? They must have begun by fixing their thoughts, as Thales and his successors did, on the worlds remotest past; they must have sought for a first cause of things, and conceived it, not as any spiritual power, but as a kind of natural ancestor homogeneous with the forms which issued from it, although greater and more comprehensive than they were; in short, as an elemental bodywater, air, fire, or, more vaguely, as an infinite substance. Did not the steady concatenation of cause and effect resemble the unrolling of a heroic genealogy? And did not the reabsorption of every individual existence in a larger whole translate into more general terms that subordination of personal to family and civic glory which is the diapason of Pindars music?
FORE:That also was Sandys opinion when, after a rapid inspection, they agreed with Jeff that the amphibian, set down with only a strained tail skid and a burst tire in the landing wheel gear, was usable.
FORE:60The Academic theory of probability bears some resemblance to the Canonic of Epicurus, and may have been partially suggested by it. Both are distinguished from the Aristotelian and Stoic logic by the care with which they provide for the absence of contradictory evidence. In this point, however, the superiority of Carneades to Epicurus is very marked. It is not enough for him that a present impression should suggest a belief not inconsistent with past experience; in the true inductive spirit, he expressly searches for negative instances, and recommends the employment of experiment for this purpose. Still more philosophical is the careful and repeated analysis of attendant circumstances, a precaution not paralleled by anything in the slovenly method of his predecessor. Here the great value of scepticism as an element in mental training becomes at once apparent. The extreme fallibility of the intellectus sibi permissus had to be established before precautions could be adopted for its restraint. But the evidence accepted in proof of this fallibility has been very different at different times, and has itself given rise to more than one fallacious interpretation. With us it is, for the most part, furnished by experience. The circumstance that many demonstrable errors were formerly received as truths is quite sufficient to put us on our guard against untested opinions. With Bacon, it was not the erroneousness of previous systems, but their barrenness and immobility, which led him to question the soundness of their logic; and his doubts were confirmed by an analysis of the disturbing influences under which mens judgments are formed. The ancient Sceptics were governed entirely by priori considerations. Finding themselves confronted by an immense mass of contradictory opinions, they argued that some of these must be false as all could not possibly be true. And an analysis of the human faculties156 led them, equally on priori grounds, to the conclusion that these irreconcilable divergences were but the result and the reproduction of an interminable conflict carried on within the mind itself. They could not foresee how much time would do towards reducing the disagreement of educated opinion within a narrower compass. They did not know what the experience of experience itself would teach. And their criticisms on the logic and metaphysics of their opponents were rendered inconclusive, as against all certainty, by the extent to which they shared that logic and metaphysics themselves. Carneades, at least, seems to assume throughout that all existence is material, that there is a sharp distinction between subject and object in knowledge, and that there is an equally sharp distinction between sensation and reasoning in the processes by which knowledge is obtained. In like manner, his ethical scepticism all turns on the axiom, also shared by him with the Stoics, that for a man to be actuated by any motive but his own interest is mere folly.
FORE:Leaving out the matter of a positive relative movement between shafts, which belts as a means of transmitting power cannot insure, there are the following conditions that must be considered in determining whether belts or other means should be employed in transmitting power from one machine to another or between the parts of machines.
TWO:"It may be lively and it may be the reverse," said Lawrence, "but it is nothing more or less than an hour or two spent in the corner house. We are going there after ten, and I prophesy that we shall catch something; if we are very lucky it may be the being with the secret."
TWO:A far higher place must be assigned to Judaism among the competitors for the allegiance of Europe. The cosmopolitan importance at one time assumed by this religion has been considerably obscured, owing to the subsequent devolution of its part to Christianity. It is, however, by no means impossible that, but for the diversion created by the Gospel, and the disastrous consequences of their revolt against Rome, the Jews might have won the world to a purified form of their own monotheism. A few significant circumstances are recorded showing how much influence they had acquired, even in Rome, before the first preaching of Christianity. The first of these is to be found in Ciceros defence of Flaccus. The latter was accused of appropriating part of the annual contributions sent to the temple at Jerusalem; and, in dealing with this charge, Cicero speaks of the Jews, who were naturally prejudiced against his client, as a powerful faction the hostility of which he is anxious not to provoke.330 Some twenty years later, a great advance has been made. Not only must the material interests of the Jews be respected, but a certain conformity to their religious prescriptions is considered a mark of good breeding, In one of his most amusing satires, Horace tells us how, being anxious to shake off a bore, he appeals for help to his friend Aristius Fuscus, and reminds him of217 some private business which they had to discuss together. Fuscus sees his object, and being mischievously determined to defeat it, answers: Yes, I remember perfectly, but we must wait for some better opportunity; this is the thirtieth Sabbath, do you wish to insult the circumcised Jews? I have no scruples on that point, replies the impatient poet. But I have, rejoins Fuscus,a little weak-minded, one of the many, you knowexcuse me, another time.331 Nor were the Jews content with the countenance thus freely accorded them. The same poet elsewhere intimates that whenever they found themselves in a majority, they took advantage of their superior strength to make proselytes by force.332 And they pursued the good work to such purpose that a couple of generations later we find Seneca bitterly complaining that the vanquished had given laws to the victors, and that the customs of this abominable race were established over the whole earth.333 Evidence to the same effect is given by Philo Judaeus and Josephus, who inform us that the Jewish laws and customs were admired, imitated, and obeyed over the whole earth.334 Such assertions might be suspected of exaggeration, were they not, to a certain extent, confirmed by the references already quoted, to which others of the same kind may be added from later writers showing that it was a common practice among the Romans to abstain from work on the Sabbath, and even to celebrate it by praying, fasting, and lighting lamps, to visit the synagogues, to study the law of Moses, and to pay the yearly contribution of two drachmas to the temple at Jerusalem.335"As soon as I have finished this cigarette," Lawrence said, coolly. "We may be too late to see the beginning of the play, but I have faith in my assistant. Now, come along. You have brought your latchkey as I asked you?"

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TWO:"For heaven's sake come here at once. Don't wait, but----"
TWO:Her eyes sparkled, her cheeks glowed with happiness. Bruce looked at her with pride and love in his eyes.On the hot afternoon of August 7th, 1914, the much-delayed train rumbled into the station at Maastricht. A dense mass stood in front of the building. Men, women, and children were crowded there and pushed each other weeping, shouting, and questioning. Families and friends tried to find each other, and many of the folk of Maastricht assisted the poor 16creatures, who, nervously excited, wept and wailed for a father, for wife and children lost in the crowd. It was painful, pitiful, this sight of hundreds of fugitives, who, although now safe, constantly feared that death was near, and anxiously clutched small parcels, which for the most part contained worthless trifles hurriedly snatched up when they fled.

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TWO:Primarily, power is a product of heat; and wherever force and motion exist, they can be traced to heat as the generating element: whether the medium through which the power is [30] obtained be by the expansion of water or gases, the gravity of water, or the force of wind, heat will always be found as the prime source. So also will the phenomenon of expansion be found a constant principle of developing power, as will again be pointed out. As steam-engines constitute a large share of the machinery commonly met with, and as a class of machinery naturally engrosses attention in proportion, the study of mechanics generally begins with steam-engines, or steam machinery, as it may be called.

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Or Justice most unjustly were she called"A beauty!" the Countess exclaimed, "And the same action as my own. I believe I know as much about it as my chauffeur. Captain Gifford, let me try it alone, do. Harris, give me a coat. No, one of the gentlemen's overcoats--that grey one will do. Do let me go round the square alone!"Looking ahead into the future, the apprentice can see a field for the mechanical engineer widening on every side. As the construction of permanent works becomes more settled and uniform, the application of power becomes more diversified, and develops problems of greater intricacy. No sooner has some great improvement, like railway and steam navigation, settled into system and regularity than new enterprises begin. To offset the undertaking of so great a work as the study of mechanical engineering, there is the very important advantage of the exclusiveness of the callinga condition that arises out of its difficulties. If there is a great deal to learn, there is also much to be gained in learning it. It is seldom, indeed, that an efficient mechanical engineer fails to command a place of trust and honour, or to accumulate a competency by means of his calling.The favourable reception which the articles on "Shop Manipulation" met with during their serial publication, and various requests for their reproduction in the form of a book, has led to the present edition.
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