The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volume 21M. Salmon, 1834 |
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Página 2
... weights , having cloth at the bottom . By this pressure , at the end of twenty - four hours , the silvering is so firmly adherent to the glass , that the weights may be removed , and the glass raised up in a sloping position , to allow ...
... weights , having cloth at the bottom . By this pressure , at the end of twenty - four hours , the silvering is so firmly adherent to the glass , that the weights may be removed , and the glass raised up in a sloping position , to allow ...
Página 5
... weight would require twenty - five horse - power to pro- pel upon Mr. Saxton's plan . Now , it is obvious that , if this be the fact , it would require twelve times twenty - five , or 300 horse - power , to propel any given weight at ...
... weight would require twenty - five horse - power to pro- pel upon Mr. Saxton's plan . Now , it is obvious that , if this be the fact , it would require twelve times twenty - five , or 300 horse - power , to propel any given weight at ...
Página 6
... weight at that ascent . But , according to Mr. Saxton's plan , the weight of the truck is to be taken into account , viz . , twelve ounces , making the total one hundred and forty - seven ounces and a half ; and this additional weight ...
... weight at that ascent . But , according to Mr. Saxton's plan , the weight of the truck is to be taken into account , viz . , twelve ounces , making the total one hundred and forty - seven ounces and a half ; and this additional weight ...
Página 7
... weight will be raised by the differen- tial power resulting . P is the pinion of the winch . After all this is merely a more conve- nient form of the old invention , which is quoted as a standing example in every treatise on mechanics ...
... weight will be raised by the differen- tial power resulting . P is the pinion of the winch . After all this is merely a more conve- nient form of the old invention , which is quoted as a standing example in every treatise on mechanics ...
Página 20
... WEIGHT OF MAN AT DIFFERENT AGES . M. Quetelet , of Brussels , has lately published the results of his investiga- tions on the development of the weight of man , his growth , his inclination to crime , the succession of generations , & c ...
... WEIGHT OF MAN AT DIFFERENT AGES . M. Quetelet , of Brussels , has lately published the results of his investiga- tions on the development of the weight of man , his growth , his inclination to crime , the succession of generations , & c ...
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...