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advantage applied ball become better body called capital carriage carried cause centre cheap cloth coal comforts common condition consequently consumed cost cotton cylinder difference diminished direction earth effect employed employment enabled engine England equal fact fall feet five force four friction give glass greater half hand horse hour human hundred improvement increased invention iron knowledge labor land less lever light live London machine machinery manufacture material means mechanical miles millions motion moving nature necessary never obtain passing person piece pounds present printing produce profit quantity raise resistance rest rise road round saving screw shillings side spring steam steam-engine stone strength supply suppose thing thousand tion trade turn twenty wages weight wheel whole workman
Página 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.
Página 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.
Página 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...
Página 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...
Página 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.
Página 43 - ... 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.
Página 7 - ... 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...
Página 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.
Página 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.
Página 7 - 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...