Mechanics' Magazine and Journal of Enigneering, Agricultural Machinery, Manufacturing, and Shipbuilding, 2권Knight and Lacey, 1824 |
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6 페이지
... correspondent inquires where logarithms may be found to twenty figures of natural numbers ? I am not able to inform him , nor do I know the real utility of such high numbers . The common ta bles of Gardener and Hutton are carried to ...
... correspondent inquires where logarithms may be found to twenty figures of natural numbers ? I am not able to inform him , nor do I know the real utility of such high numbers . The common ta bles of Gardener and Hutton are carried to ...
7 페이지
... correspondent will possibly admit , that long and complicated calculations , even by common arithmetic , are occasionally liable to error . It may be expected that I should explain the reason why I adopted the number 287500 instead of ...
... correspondent will possibly admit , that long and complicated calculations , even by common arithmetic , are occasionally liable to error . It may be expected that I should explain the reason why I adopted the number 287500 instead of ...
16 페이지
... correspondents be so kind as to inform me , through the medium of your Magazine , by what mode I can reach the main- spring ; if by pipe , what method ought to be used to get it down . As these wells are usually paid for by the foot , I ...
... correspondents be so kind as to inform me , through the medium of your Magazine , by what mode I can reach the main- spring ; if by pipe , what method ought to be used to get it down . As these wells are usually paid for by the foot , I ...
17 페이지
... ; The inquiry of your correspondent , A Miller in VOL . II . the Mountains " ( Vol . I , p . 351 ) has suggested to me two plans , either of which will , in my humble opi- C nion , answer the purpose required . By the one. E ...
... ; The inquiry of your correspondent , A Miller in VOL . II . the Mountains " ( Vol . I , p . 351 ) has suggested to me two plans , either of which will , in my humble opi- C nion , answer the purpose required . By the one. E ...
20 페이지
... correspondent adverted to an indistinct newspaper notice of some remarkable observations on the Rise and Fall of the Barometer made at Ceylon , by Colonel Wright . We are now happy in being enabled to give Colonel Wright's observations ...
... correspondent adverted to an indistinct newspaper notice of some remarkable observations on the Rise and Fall of the Barometer made at Ceylon , by Colonel Wright . We are now happy in being enabled to give Colonel Wright's observations ...
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117 페이지 - Studies serve for delight, for ornament, and for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgment and disposition of business...
362 페이지 - Observations on a general iron railway, or land steam conveyance, to supersede the necessity of horses in all public vehicles ; showing its vast superiority in every respect over all the present pitiful methods of conveyance by turnpike roads, canals, and coasting traders ; containing every species of information relative to railroads and locomotive engines.
14 페이지 - In human works, though labour'd on with pain, A thousand movements scarce one purpose gain; In God's, one single can its end produce; Yet serves to second too, some other use.
206 페이지 - ... increasing the quantity of steam. The substance employed is known by the name of comings, being the radicles of barley, produced in the process of malting, which are separated before the malt is sent to market. About a bushel of these is thrown into the boiler, and when the steam is again raised, an immediate effect is visible; for there is not only a plentiful supply of steam to produce the full working speed of the engine, but an excess of it going waste at the safety valve: this singular effect...
123 페이지 - Now the distance of the centre of oscillation from the point of suspension...
113 페이지 - It is a pleasure to stand upon the shore and to see ships tossed upon the sea; a pleasure to stand in the window of a castle and to see a battle and the adventures thereof below; but no pleasure is comparable to the standing upon the vantage ground of truth (a hill not to be commanded, and where the air is always clear and serene), and to see the errors and wanderings and mists and tempests in the vale below; so always that this prospect be with pity, and not with swelling or pride.
176 페이지 - The hive is generally made out of a log of wood from two to three feet long, and eight or ten inches in diameter, hollowed out, and closed at the ends by circular doors, cemented closely to the wood, but capable of being removed at pleasure.
176 페이지 - ... the economy of the interior to more advantage. The honey is not contained in the elegant hexagonal cells of our hives, but in wax bags, not quite so large as an egg.
103 페이지 - ... 6 to 5. The following Table exhibits the relative adhesion of nails of various kinds, when forced into dry Christiana Deal, at right angles to the grain of the wood...
354 페이지 - Indeed, there is no machine or mechanism in which the little that theorists have done is more useless. The honour of bringing it to its present state of perfection, therefore, belongs to a different and more useful class. It arose, was improved and perfected by working mechanics — and by them only...