Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and Miscellaneous Literature, Volume 13Archibald Constable, 1823 |
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Page 105
... nature of the machinery , from an inequality in the resistance to be overcome , and from the nature of the impelling power . In large machines , the momenta of their parts are generally sufficient to equalize these irregularities ; but ...
... nature of the machinery , from an inequality in the resistance to be overcome , and from the nature of the impelling power . In large machines , the momenta of their parts are generally sufficient to equalize these irregularities ; but ...
Page 108
... nature and effects of this retarding force , and with the method of diminishing its effects on machinery , is of infinite importance to the practical mechanic . philosophers to unfold the nature of friction , it was 372. Notwithstanding ...
... nature and effects of this retarding force , and with the method of diminishing its effects on machinery , is of infinite importance to the practical mechanic . philosophers to unfold the nature of friction , it was 372. Notwithstanding ...
Page 188
... Nature . To this principle , he ascribes a mighty power . " Nature ( says he ) is of itself sufficient to every animal . She performs every thing that is necessary to them , with- out needing the least instruction ' from any one how to ...
... Nature . To this principle , he ascribes a mighty power . " Nature ( says he ) is of itself sufficient to every animal . She performs every thing that is necessary to them , with- out needing the least instruction ' from any one how to ...
Page 189
... nature , either absolving or condemning the patient . Hence we may conclude , that Hippocrates imagined diseases to be on- ly a disturbance of the animal economy , with which Nature was perpetually at variance , and using her ut- most ...
... nature , either absolving or condemning the patient . Hence we may conclude , that Hippocrates imagined diseases to be on- ly a disturbance of the animal economy , with which Nature was perpetually at variance , and using her ut- most ...
Page 193
... nature is able to accomplish without being assisted by the physician . That this was really the case , may be easily perceived from a perusal of his books entitled , " Of epidemical distempers ; " which are , as it were , journals of ...
... nature is able to accomplish without being assisted by the physician . That this was really the case , may be easily perceived from a perusal of his books entitled , " Of epidemical distempers ; " which are , as it were , journals of ...
Common terms and phrases
affected ancient angle appears arch arise attended axis bleeding blisters blood body brass called cause centre of gravity centre of inertia cinchona clysters coins cold Colonia commonly consequence continued costiveness cough cure curve cycloid debility delirium denarius disease disorder distemper Dr Cullen employed epicycloid equal equilibrium Erysipelas especially evacuation extremities fauces Febris fever force frequently friction Gallienus Genus gold gout Greek heat Hence Hippocrates inches increased inflammation inflammatory intestines Junck kind lever lungs machine matter medals medicines Menorrhagia motion moving nature observed occasion opinion ounce pain paroxysms particular patient phthisis physicians Pinkerton plane pleurisy pounds produced pulley pulse purging putrid pyrexia quantity radius remedies resistance Roman rope Sauv septiers sestertius silver skin smallpox sometimes spasm stomach supposed sweat symptoms tertian tetanus tion Typhus urine velocity vessels violent vomiting weight wheel whole
Popular passages
Page 118 - ... when the velocities compared are more than double of that where the given load produces a maximum, the effects increase nearly in a simple ratio of the velocity of the wind.
Page 270 - ... sometimes they creep on surprisingly slow, and very frequently intermit. The sick become quite insensible and stupid, scarce affected with the loudest noise or the strongest light, though at the beginning strangely susceptive of the impressions of either.
Page 47 - ... of the weight. Coulomb made numerous experiments upon friction, and, by employing large bodies and ponderous weights, and conducting his experiments on a large scale, corrected several errors, which necessarily arose from the limited experiments of preceding writers. He brought to light many new and striking phenomena, and confirmed others, which were previously but partially established. We cannot, in a work of this kind, follow M.
Page 17 - Berlin in 1744, when a marriage was negociated and * brought about by the good offices of the queen mother, between our author and mademoiselle de Borck, a lady of great beauty and merit, and nearly related to M. de Borck, at that time minister of state. This determined him to settle at Berlin, as he was extremely attached to his new spouse, and regarded this alliance as the most fortunate circumstance of his life. In...
Page 331 - During eight years, which have elapsed since Dr. Jenner made his discovery public, the progress of vaccination has been rapid, not only in all parts of the united kingdom, but in every quarter of the civilized world. In the British islands some hundred thousands have been vaccinated ; in our possessions in the East Indies upwards of 800,000 ; and among the nations of Europe the practice has become general. Professional men have submitted it to the fairest trials, and the public have, for the most...
Page 302 - This name has been given to an inflammation of the glottis, larynx, or upper part of the trachea, whether it affect the membranes of these parts, or the muscles adjoining. It may arise first in these parts, and continue to subsist in them alone; or it may come to affect these parts, from the cynanche tonsillaris or maligna spreading into them.
Page 160 - Of the Roman consular coins not very many have ever been forged. The celebrated silver denarius of Brutus, with the cap of liberty and two daggers, is the chief instance of a consular coin of which a counterfeit is known. But it is easily rejected by this mark : in the true coin the cap of liberty is below the guard or hilt of the daggers; in the false the top of it rises above tin, t hilt. The imperial series of medals is the grand object of modern medallic forgeries; and the' deception was at first...
Page 115 - ... foot high in a second for ten hours in a day. Two men working at a windlass at right angles to each other can raise 70 pounds more easily than one man can raise 30 pounds. Mr.
Page 64 - CENTRE OF GRAVITY Of any body, or system of bodies, is that point upon which the body, or system of bodies, acted upon only by the force of gravity, will balance itself in all positions...
Page 332 - ... but it appears, that nothing more was meant* than to express irregularity or difference from that common form and progress of the vaccine pustule from which its efficacy is inferred.