The Results of Machinery: Namely, Cheap Production and Increased Employment Exhibited : Being an Address to the Working-men of the United KingdomCarey & Hart, 1831 - 216 halaman |
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Halaman 203
... resistance always con- quer in the end ? We ask you , now , to direct your attention another way . Your own experience must have often shown you too many men whose condition was the entire opposite of that of the man we have described ...
... resistance always con- quer in the end ? We ask you , now , to direct your attention another way . Your own experience must have often shown you too many men whose condition was the entire opposite of that of the man we have described ...
Halaman
... resistance of the medium , & c . Dr. Arnott adduces several familiar illustrations of motions and forces . Thus , all falling and pressing bodies exhibit attraction in its simplest form . Repul- sion is instanced in explosion , steam ...
... resistance of the medium , & c . Dr. Arnott adduces several familiar illustrations of motions and forces . Thus , all falling and pressing bodies exhibit attraction in its simplest form . Repul- sion is instanced in explosion , steam ...
Halaman 6
... resistance of the medium , & c . Dr. Arnott adduces several familiar illustrations of motions and forces . Thus , all falling and pressing bodies exhibit attraction in its simplest form . Repul- sion is instanced in explosion , steam ...
... resistance of the medium , & c . Dr. Arnott adduces several familiar illustrations of motions and forces . Thus , all falling and pressing bodies exhibit attraction in its simplest form . Repul- sion is instanced in explosion , steam ...
Halaman 10
... resistance which the water offers to the two . Why are ships so often destroyed by running foul of each other at sea ? Because when two bodies moving in opposite direc- tions meet , each body sustains as great a shock as if , being at ...
... resistance which the water offers to the two . Why are ships so often destroyed by running foul of each other at sea ? Because when two bodies moving in opposite direc- tions meet , each body sustains as great a shock as if , being at ...
Halaman 12
... resistance of the air . In velocities exceeding 1,600 feet per second , the resistance of the air is greatly increased ; hence the absurdity of giving balls too great an initial velocity . To give a bullet the velocity of 2000 feet per ...
... resistance of the air . In velocities exceeding 1,600 feet per second , the resistance of the air is greatly increased ; hence the absurdity of giving balls too great an initial velocity . To give a bullet the velocity of 2000 feet per ...
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Istilah dan frasa umum
advantage agricultural amongst arch ball beam body bookbinders capital carriage centre cheap chinery cloth coal comforts consumed contrivances cost of production cotton cylinder diminished ditto duce earth effect employed employment engine England equal exertion feet fifty force four lads friction give glass greater hairbags half hand horse hour human labor hundred improvement inch increased ingenuity invention Ireland iron Joseph Foster knife labor Lancashire land less lever Liverpool London machine machinery manufacture means mechanical ment metal miles millions motion moving pendulum pendulum clock person Petworth pieces pounds pounds sterling printing printing-press produce profitable labor pulley quantity raise resistance road rollers round saving screw shillings ships side simple machines spinning steam steam-engine steel stone sumer thing thousand thread tion tons trade turn twenty United Kingdom velocity wages wedge weight wheel windlass workman wrought iron yards
Bagian yang populer
Halaman 91 - It was no uncommon thing for a weaver to walk three or four miles in a morning, and call on five or six spinners, before he could collect weft to serve him for the remainder of the day ; and when he wished to weave a piece in a shorter time than usual, a new ribbon, or gown, was necessary to quicken the exertions of the spinner.
Halaman 178 - I' the commonwealth I would by contraries Execute all things: For no kind of traffic Would I admit; no name of magistrate; Letters should not be known ; riches, poverty, And use of service, none; contract, succession, Bourn, bound of land, tilth, vineyard, none; No use of metal, corn, or wine, or oil; No occupation; all men idle, all, And women too, but innocent and pure : No sovereignty— Seb.
Halaman 115 - ... for want of a nail the shoe was lost; for want of a shoe the horse was lost; and for want of a horse the rider was lost...
Halaman 214 - We were thrown but once indeed in going, but our coach — which was the leading one — and his highness's body coach would have suffered very much, if the nimble boors of Sussex had not frequently poised it or supported it with their shoulders...
Halaman 215 - ... servants, if they had any sheet above them, it was well, for seldom had they any under their bodies to keep them from the pricking straws that ran oft through the canvas of the pallet and rased their hardened hides.
Halaman 49 - ... box, from which it was forced by means of a powerful screw depressing a tightly-fitted piston ; thence it fell between two iron rollers ; below these were placed a number of other rollers, two of which had, in addition to their rotatory motion, an end motion, ie a motion in the direction of their length ; the whole system of rollers terminated in two, which applied the ink to the types. In order to obtain a great number of impressions from * Mr.
Halaman 13 - ... been checked at once, had the great truth been generally understood, that no form or combination of machinery ever did or ever can increase, in the slightest degree, the quantity of power applied. Ignorance of this is the hinge on which most of the dreams of mechanical projectors have turned. No year passes, even now, in which many patents are not taken out for such supposed discoveries ; and the deluded individuals, after...
Halaman 161 - Two centuries ago, not one person in a thousand wore stockings ; — one century ago, not one person in five hundred wore them;— now, not one person in a thousand is without them.
Halaman 37 - Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. The most advantageous manner of applying human strength is in the act of rowing.
Halaman 13 - Hence the common error in supposing that they generate force, or have a sort of innate power for saving labour ; whereas, neither simple machines nor mechanic powers save labour, in a strict sense of the phrase. Why, then, are these machines advantageous ? Because they allow a small force to take its time to produce any requisite magnitude of effect. Thus, one man's effort, or any small power, which is always at command, by working proportionally longer, will answer the purpose of the sudden effort...