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The force of gravity acts only in one directionvertically, so that the main force of hoisting and handling machinery which opposes gravity must also act vertically, while the horizontal movement of objects may be accomplished by simply overcoming the friction between them and the surfaces on which they move. This is seen in practice. A force of a hundred pounds may move a loaded truck, which it would require tons to lift; hence the horizontal movements of material may be easily accomplished by hand with the aid of trucks and rollers, so long as it is moved on level planes; but if a weight has to be raised even a single inch by reason of irregularity in floors, the difference between overcoming frictional contact and opposing gravity is at once apparent.

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The articles alluded to were suggested by observations made in actual practice, and by noting a "habit of thought" common among learners, which did not seem to accord with the purely scientific manner in which mechanical subjects are now so constantly treated.There was no further hesitation. This was an adventure after the woman's own heart. With the purloined cloak covering her from head to foot she passed down the steps and into the roadway. Nobody noticed her, for the spectacle was not a very uncommon one. Under the shadow of the portico a little way off stood a motor, watched by a nightbird who would have done anything for a few coppers.
  • ONE:"Yes, yes, but now listen; I have told you already that...." TWO:Mamie clapped her hands again. A significant look passed between the two conspirators. A small key changed hands. Before the story proper was finished Countess Lalage came down the steps into the garden. Admiration was necessary to her, and the idea of a man's preferring Mamie's conversation to hers was absurd.In every quarter I met Belgian refugees from the south, and Netherlanders who wanted to escape to their safe native country. The Lige people themselves were not allowed to leave.

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  • ONE:The effect of tempering baths is as their conducting power; chemicals except as they may contribute to the conducting properties of a bath, may safely be disregarded. For baths, cold or ice water loaded with salt for extreme hardness, and warm oil for tools that are thin and do not require to be very hard, are the two extremes outside of which nothing is required in ordinary practice."The houses caught fire from burning benzine, and the flames burst out in other quarters also. On Wednesday afternoon part of the town and the northern suburb were in flames." TWO:In Ostend every place was full of wounded men, who all came walking from the battle-field in groups. Even in those days the fierce fights continued in consequence of the mad attempts to conquer Dunkirk and Calais. Great losses were suffered also by the enormous effect of the British naval guns, against which the German marines had mounted big guns in Ostend and farther along the coast, in order to keep the fleet at a distance.

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  • ONE: TWO:

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  • ONE:The boy passed on whistling under his breath. Outside Hetty opened her message. Her fingers trembled slightly.An unrighteous gain. TWO:CHAPTER XVI. MACHINERY OF APPLICATION.

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  • ONE:"Are you a friend of the prison----, I mean of Dr. Bruce?" asked the inquisitive one. TWO:

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THREE:I put all my hope on a car that loomed up in the distance. It was assisting in the reprovisioning of Brussels, and only for that reason had the carman got permission to use it. I signalled to him, and he stoppeda big lout of a man who evidently had had a drop too much; he would not allow me to ride on with him, because he preferred to remain alone on his car than to help a spy. "I am a Belgian, a Belgian, and not a traitor, not a traitor of my country," he assured me, with a lot of beery tears. In any case the man meant well, and probably he had tried to drown his troubles in drink."That is a good omen," she said. "They will be all after you now, dear."
THREE:An apprentice may learn that power is not increased or diminished by being transmitted through a train of wheels which change both speed and force, and he may believe the proposition without having a "conviction" of its truth. He must first learn to regard power as a constant and indestructible elementsomething that may be weighed, measured, and transmitted, but not created or destroyed by mechanism; then the nature of the mechanism may be understood, but not before.It is not intended to claim that this platen-reversing motion cannot, like any other mechanical movement, be resolved mathematically, but that the mechanical conditions are so obscure and the invention made at a time that warrants the supposition of accidental discovery.

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THREE:"She struck me as being rather nice," Bruce replied. "And I am quite sure that she was sincere in her congratulations.""A word with you, Dr. Bruce," he said. "These notes, 190753 to 190792, were in the possession of the man found murdered at the corner house in Raven Street. We know they were stolen from him. The next day they were paid here in purchase of some furniture."

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THREE:We met only a few Germans on the road from Brussels to Charleroi, and found no garrison except in the townlet Hal. Very little burning had taken place on this road, but so much the more plundering and looting. A woman took us all over her house in the neighbourhood of Brussels, to show us the total wrecking. Small pieces of furniture were generally taken away, but stoves, kitcheners, and cupboards were smashed. She herself had had her face badly wounded, because she had hidden herself in the cellar when the Germans came near, and they had beaten her out of that with their rifle-butts. Many other women were treated in the same manner.Dick nodded and passed the report to Sandy.

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THREE:Pencilling is the first and the most important operation in draughting; more skill is required to produce neat pencil-work than to ink in the lines after the pencilling is done.

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FORE:They were gone out at last, and Sergeant Prout was left to make his investigations in peace. Up to now he had hardly as much as examined the body. An attempt had been made to find the owner of the house, or the agents, but without success.We had to give in first, Larry decided ruefully.
FORE:For reply Larry strode over to the metal door set in the wall for use when anyone chose to enter or leave the hangar.
FORE:But if Aristotle had not his masters enthusiasm for practical reforms, nor his masters command of all the forces by which humanity is raised to a higher life, he had, more even than his master, the Greek passion for knowledge as such, apart from its utilitarian applications, and embracing in its vast orb the lowliest things with the loftiest, the most fragmentary glimpses and the largest revelations of truth. He demanded nothing but the materials for generalisation, and there was nothing from which he could not generalise. There was a place for everything within the limits of his world-wide system. Never in any human soul did the309 theorising passion burn with so clear and bright and pure a flame. Under its inspiration his style more than once breaks into a strain of sublime, though simple and rugged eloquence. Speaking of that eternal thought which, according to him, constitutes the divine essence, he exclaims:"I cannot tell you from memory. But I am going to ask you to find the address. You know the little bedroom I used to occupy at the top of the Lytton Avenue house. There is a cupboard in the corner, and the board next the fireplace comes up. In the recess you will find a little box full of papers. On one paper is my sister's address. The other papers I will ask you to burn unread."
FORE:Gast he muttered.
FORE:The Everdail Emeralds! Larry repeated the phrase sharply. Why, Jeff! Ive read a newspaper story about them, in a Sunday supplement. Thats the matched set of thirty emeralds
FORE:Let it be remembered that the gods of whom Plato is speaking are the sun, moon, and stars; that the atheists whom he denounces only taught what we have long known to be true, which is that those luminaries are no more divine, no more animated, no more capable of accepting our sacrifices or responding to our cries than is the earth on which we tread; and that he attempts to prove the contrary by arguments which, even if they were not inconsistent with all that we know about mechanics, would still be utterly inadequate to the purpose for which they are employed.
FORE:Nevertheless, by dint of pertinacious repetition, the founder of Neo-Platonism has succeeded in making the main outlines, and to a great extent the details, of his system so perfectly clear that probably no philosophy is now better understood than his. In this respect, Plotinus offers a remarkable contrast to the two great thinkers from whom his ideas are principally derived. While Plato and Aristotle construct each particular sentence with masterly clearness, the general drift of their speculations is by no means easy to ascertain; and, even now, critics take diametrically opposite views of the interpretation which is to be put on their teaching with regard to several most important points. The expositors of Neo-Platonism, on the contrary, show a rare unanimity in their accounts of its constitutive principles. What they differ about is its origin and its historical significance. And these are points on which we too shall have to enter, since all the ancient systems are interesting to us chiefly as historical phenomena, and Neo-Platonism more so than any other. Plotinus285 effected a vast revolution in speculative opinion, but he effected it by seizing on the thoughts of others rather than by any new thoughts or even new developments or applications of his own.
FORE:
FORE:"Never mind that," he said hoarsely. "I did find you out, and here I am. Oh, it was a cunning plot of yours--so near and yet so far away. And as much brandy as I could drink so that I might drink myself to death, and after that perhaps a handsome monument testifying to my virtues. But I'm not going to stand it any more, I'm not going back there."

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Such a view was essentially unfavourable to the progress of science, assigning, as it did, a higher dignity to meagre and very questionable abstractions than to the far-reaching combinations by which alone we are enabled to unravel the inmost texture of visible phenomena. Instead of using reason to supplement sense, Aristotle turned it into a more subtle and universal kind of sense; and if this disastrous assimilation was to a certain extent imposed upon him by the traditions of Athenian thought, it harmonised admirably with the descriptive and superficial character of his own intelligence. Much was also due to the method of geometry, which in his time had already assumed the form made familiar to us by Euclids Elements. The employment of axioms side by side with definitions, might, indeed, have drawn his attention to the existence and importance of judgments which, in Kantian terminology, are not analytic but syntheticthat is, which add to the content of a notion instead of simply analysing it. But although he mentions axioms, and states that mathematical theorems are deduced from them, no suspicion of their essential difference from definitions, or of the typical significance which they were destined to assume in the theory of reasoning, seems ever to have crossed his mind; otherwise he could hardly have failed to ask how we come by our knowledge of them, and to what they correspond in Nature. On the whole,385 it seems likely that he looked on them as an analysis of our ideas, differing only from definition proper by the generality of its application; for he names the law of contradiction as the most important of all axioms, and that from which the others proceed;277 next to it he places the law of excluded middle, which is also analytical; and his only other example is, that if equals be taken from equals the remainders are equal, a judgment the synthetic character of which is by no means clear, and has occasionally been disputed.278"It is always thus in books," Leona said, with a hard smile.VI.Second.The steam establishes the greatest possible elasticity in the connection between a hammer and the driving power, and at the same time serves to cushion the blows at both the top and bottom of the stroke, or on the top only, as occasion may require.
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