A History of EngineeringA. & C. Black, 1925 - 312 頁 |
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adopted advantages appears application became become Bessemer bridge building built cable canal carried cast century coal commenced Committee communication Company completed connection considerable construction continued cost cylinder difficulty direction early effect electric employed England established experiments feet fire give hand History horses hour important improved inches increased industry interest invention iron known later length light Liverpool locomotive London machine Manchester manufacture material means measure mechanical metal method miles motor obtained opened operation original passed patent period port possible practical present produced progress rails railway received result river road scheme ship side standard steam engine steel Stephenson stone success supply taken telegraph tion tons took town trade transport unions vessels Watt weight
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第 111 頁 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
第 1 頁 - Engineer ; being the art of directing the great sources of power in Nature for the use and convenience of man...
第 110 頁 - A Century of the Names and Scantlings of such Inventions as at present I can call to mind to have tried and perfected...
第 9 頁 - And they said, Go to, let us build us a city, and a tower whose top may reach unto heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth.
第 110 頁 - An admirable and most forcible way to drive up water by fire, not by drawing or sucking it upwards, for that must be as the philosopher calleth it, infra spheeram activitatis, which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it...
第 273 頁 - Our fields are cultivated with a skill unknown elsewhere, with a skill which has extorted rich harvests from moors and morasses. Our houses are filled with conveniences which the kings of former times might have envied.
第 84 頁 - Much more to be condemned is the execrable muddy road from Bury to Sudbury in Suffolk, in which I was forced to move as slow as in any unmended lane in Wales. For ponds of liquid dirt and a scattering of loose flints just sufficient to lame every horse that moves near them, with the addition of cutting vile grips across the road, under pretence of letting water off, but without the effect, altogether render at least twelve of these sixteen miles as infamous a turnpike as ever was travelled.
第 123 頁 - I must get quit of the condensed steam and injection water, if I used a jet as in Newcomen's engine. Two ways of doing this occurred to me. First the water might be run off by a descending pipe, if an offlet could be got at the depth of 35 or 36 feet, and any air might be extracted by a small pump; the second was to make the pump large enough to extract both water and air. ... I had not walked further than the Golf-house when the whole thing was arranged in my mind.
第 122 頁 - He needed only to be prompted ; for everything became to him the beginning of a new and serious study, and we knew that he would not quit it till he had either discovered its insignificancy or made something of it.
第 246 頁 - Thus having taken our bearings, we stood off three or four miles, so as to come broadside on, and then casting over the grapnel, drifted slowly down upon it, dragging the bottom of the ocean as we went. At first it was a little awkward to fish in such deep water, but our men got used to it, and soon could cast a grapnel almost as straight as an old whaler throws a harpoon. Our fishing line was of formidable size.