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    Software name: appdown
    Software type: Microsoft Framwork

    size: 855MB


    Software instructions

      Designing machines must have reference to adaptation, endurance, and the expense of construction. Adaptation includes the performance of machinery, its commercial value, or what the machinery may earn in operating; endurance, the time that machines may operate without being repaired, and the constancy of their performance; expense, the investment represented in machinery.

      I was soon fast asleep, tired out by my bicycle ride of that day of about forty-five miles, and my wanderings through Lige. But my rest was not to be a long one. At about ten o'clock I was awakened by a great noise on the stairs, and was surprised to see six armed soldiers in my room. That is not exactly a pleasant manner of waking up after so short a sleep. They informed me in a gruff voice that I had to get up, to dress and follow them. As I obeyed the order, I asked what gave me this unexpected honour; but they refused to enlighten me on that point.

      As I felt myself one with the population, I uncovered my head and enthusiastically joined in the cry: "Au revoir! Au revoir!"

      In those first days many civilians were killed, and not only in Vis, but still more in the surrounding villages, Mouland and Berneaux, which were soon burnt down and where many a good man was brought low by the murderous bullets. The savage soldiers killed the cattle also, and a large number of carcases had been lying about for days.The relation between invention and the engineering arts, and especially between invention and machines, will warrant a short review of the matter here; or even if this reason were wanting, there is a sufficient one in the fact that one of the first aims of an engineering apprentice is to invent something; and as the purpose here is, so far as the limits will permit, to say something upon each subject in which a beginner has an interest, invention must not be passed over.

      Having got them, several officers examined my credentials, and their faces showed that the horizon was a little clearer for me.After all, this was better than walking, so I decided to make a small detour, go once more to Lige, and see how the forts were. I lost my way in a maze of by-roads, and got at last back to the main road near Jupille, where I met a patrol of Uhlans, who came in my direction at a trot.

      A good many soldiers were lying round about the high cement factory of Haccourt. The factory itself seemed to be used as a station for observations, for suddenly a voice roared from a top window: "Stop those people!" And we were stopped and taken to a small table where three officers were sitting drinking wine. The colonel asked for my papers, which he did not consider sufficient, as I had no passport from some German military authority. So I drew out again the bridge-commander's scrap of paper which said that I was permitted to go from Lixhe to Vis.

      "You see, sir, the bridge across the Meuse has been destroyed, and in order to get back I had to walk first towards ... towards ... Lige ... and ... and ... and then they ferried me over somewhere down there, and told me that I had to go along the canal to get to Maastricht."



      My stories are not exaggerated or touched up, but are true to reality. That is the reason why the German authorities have driven me away from Belgium, and tried to get hold of me to punish me. On that side they are afraid that the truth be known.Nor did I see any inhabitants in the burning78 town. It was practically impossible to stay in the streets; burning walls and roofs and gutters crashed down with a great noise, so that the streets were as much on fire as the houses themselves. Only at the crossings were any soldiers to be seen, who, in various stages of intoxication, constantly aimed at the burning houses, and shot everything that tried to escape from the burning stables and barns: pigs, horses, cows, dogs, and so on.


      It must always be remembered that what is to be learned should not be estimated according to a learner's ideas of its importance. A manager and workmen generally look upon fitting as one of the most honourable and intelligent of pursuits, deserving of the respect and best efforts of an apprentice; and while a learner may not think it a serious thing to make a bad fit, or to meet with an accident, his estimate is not the one to judge from. The least word or act which will lead workmen to think that an apprentice is indifferent, at once destroys interest in his success, and cuts off one of the main sources from which information may be derived.4. To cause a movement of the valve after the hammer stops there must be an intermediate agent, that will continue to [163] act after the movement of the hammer drop has ceased.