The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 21M. Salmon, 1834 |
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Página 3
... considered as a simple lever . " This investigation may be pursued under three cases . " Case 1st . - Let the lower perpendicu lar radius of a vertical wheel of 40 inches diameter , resting on a horizontal plane , be considered B 2 ...
... considered as a simple lever . " This investigation may be pursued under three cases . " Case 1st . - Let the lower perpendicu lar radius of a vertical wheel of 40 inches diameter , resting on a horizontal plane , be considered B 2 ...
Página 4
... considered as a continued suc- cession of such simple levers , with fulcra progressing at the same rate , it will be evi- dent that if a thread be fastened to , and wound around a pulley of 18 inches radius , then the common axis will ...
... considered as a continued suc- cession of such simple levers , with fulcra progressing at the same rate , it will be evi- dent that if a thread be fastened to , and wound around a pulley of 18 inches radius , then the common axis will ...
Página 10
... considered an indirect effect of them , and form , as far as we are aware , the only benefits those bodies have bestowed upon their country , in return for the violence and oppressions of which they have been guilty . EXTRAORDINARY ...
... considered an indirect effect of them , and form , as far as we are aware , the only benefits those bodies have bestowed upon their country , in return for the violence and oppressions of which they have been guilty . EXTRAORDINARY ...
Página 18
... considered as nearly useless after its partner is disabled , whereas no inconvenience has yet been found here to result from the want of the connexion . Each engine works as easily , and passes the centre as well , as it could do if ...
... considered as nearly useless after its partner is disabled , whereas no inconvenience has yet been found here to result from the want of the connexion . Each engine works as easily , and passes the centre as well , as it could do if ...
Página 34
... considered necessary . " - p . 25 . " The cellars in Munich are very deep under ground , so that the temperature never rises higher than between 70 and 80 of Rea- mur , which is from 480 to 500 of Fahren- heit . In some of them ice is ...
... considered necessary . " - p . 25 . " The cellars in Munich are very deep under ground , so that the temperature never rises higher than between 70 and 80 of Rea- mur , which is from 480 to 500 of Fahren- heit . In some of them ice is ...
Outras edições - Ver tudo
The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 36 Visualização integral - 1842 |
The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 16 Visualização integral - 1832 |
The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 35 Visualização integral - 1841 |
Palavras e frases frequentes
apparatus appears applied Argand burner bees boat boiler canal carbon carbonic acid carriage centre chimney coal coal-tar column combustion communication consequence constructed copper cotton cylinder diameter diurnal motion effect employed engine England equal experiments explosive feet flame Fleet-street flue fluid friction gas bladder Glasgow glass heat hive hydrogen improvements inches inclined plane invention iron Journal labour lamp less lever light London machine machinery Magazine manufacture means Mechanics ment mercury Messrs metal miles mills mode months to specify motion mules Mulhausen Nutt Nutt's obelisk observed operation oxygen pass patent persons piece piston plate present pressure principle produced propelled pulleys purpose quantity railway rendered Saint Augustin screw side six months spindles spinner spinning steam steam-engine strychnia supposed surface Symington thick threads tion tube vapour velocity vessel weight wheel whole William Symington
Passagens conhecidas
Página 126 - As in mathematics, so in natural philosophy, the investigation of difficult things by the method of analysis, ought ever to precede the method of composition. This analysis consists in making experiments and observations, and in drawing general conclusions from them by induction, and admitting of no objections against the conclusions, but such as are taken from experiments, or other certain truths. For hypotheses are not to be regarded in experimental philosophy.
Página 296 - There is a pleasure in the pathless woods, There is a rapture on the lonely shore. There is society where none intrudes, By the deep sea, and music in its roar; I love not man the less, but nature more...
Página 128 - These results are best explained by considering the nature of the flame of combustible bodies — which, in all cases, must be considered as the combustion of an explosive mixture of inflammable gas, or vapour and air...
Página 427 - The difference between the time shown by the sidereal clock, at the transit, and the right ascension of the body, taken from the almanack, will, therefore, be the error of the clock, + , or too fast, when the clock time is greater than the right ascension, — , or too slow, when it is less.
Página 96 - Arcana of Science and Art ; or, an Annual Register of Useful Inventions and Improvements...
Página 380 - His gradual rise from the stonemasons' and builders' yard to the top of his profession in his own country, or, we believe we may say, in the world, is to be ascribed not more to his genius, his consummate ability, and persevering industry, than to his plain, honest, straight-forward dealing, and the integrity and candour which marked his character throughout life.
Página 221 - ... in the common concerns of commerce, should be claimed by many contending nations, is what would naturally be expected. * * * All Arabian authors on arithmetic appear to agree that the first writer of that country upon this system of arithmetic was Mohammed ben Muza, the Khuwarezmite, who flourished about the year 900. This writer is celebrated for having introduced among his countrymen many important parts of the science of the Hindoos, to the cultivation of which he was devotedly attached ;...
Página 234 - The enormous magnitude of these bodies," he remarks, "and consequent probable mass (if they be not hollow shells), may give them a gravitating energy, which, however rare we may conceive them to be, may yet be capable of retaining in orbits, three or four times their own diameter, and in periods of great length, small bodies of a stellar character.
Página 124 - To all whom it may concern: Be it known, that I, Ross Winans, civil engineer, of the city of Baltimore, in the State of Maryland, have invented a new and useful improvement in the construction of cars or carriages intended to travel upon...
Página 10 - The Woolcombers' Union has been celebrated above a century, and several Acts of Parliament have been passed with the object of suppressing the power which it had acquired, and exercised with the usual bad consequences. Hence, many endeavours have been made to comb wool entirely by machinery, but with very partial success, till last year, when the whole of the combers in a large factory struck, upon which the proprietors turned their attention to this machine, applied their skill and capital to its...