The Steam EngineThomas Osmond Summers E. Stevenson & F. A. Owen, 1856 - 188 páginas |
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Página 18
... admitted , as it is also by Aris- totle and other authors . The Grecian theory of earthquakes is a suffi- cient proof that the force of steam was not under- valued ; and so plausible is the hypothesis , that some writers of our own ...
... admitted , as it is also by Aris- totle and other authors . The Grecian theory of earthquakes is a suffi- cient proof that the force of steam was not under- valued ; and so plausible is the hypothesis , that some writers of our own ...
Página 19
... admitted to be sufficient to produce earthquake , the most violent phenomenon in nature . That the Greeks should have had such a vivid conception of the power of steam is so strange that we are led to inquire from what source they ...
... admitted to be sufficient to produce earthquake , the most violent phenomenon in nature . That the Greeks should have had such a vivid conception of the power of steam is so strange that we are led to inquire from what source they ...
Página 32
... admitted by all authors ; and to us it seems probable that the elasticity of steam was also discovered , and that Hero himself was acquainted with the property . The first of a long catalogue of inventors pre- sented by England is ...
... admitted by all authors ; and to us it seems probable that the elasticity of steam was also discovered , and that Hero himself was acquainted with the property . The first of a long catalogue of inventors pre- sented by England is ...
Página 51
... admitted under the piston , it will remain , as it were , indifferent to rest or motion , an unstable equilibrium being produced by the opposing equal forces . To give a preponderating power , the pump - rod was made heavier than the ...
... admitted under the piston , it will remain , as it were , indifferent to rest or motion , an unstable equilibrium being produced by the opposing equal forces . To give a preponderating power , the pump - rod was made heavier than the ...
Página 72
... admitted that it could not be touched . This was an advantage in raising the piston , but , on the other hand , it increased the difficulty of cooling the cylinder be- fore a vacuum could be produced for the descent . It therefore ...
... admitted that it could not be touched . This was an advantage in raising the piston , but , on the other hand , it increased the difficulty of cooling the cylinder be- fore a vacuum could be produced for the descent . It therefore ...
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Términos y frases comunes
adopted æolipile Anthemius application Arago atmosphere beam boiler Caledonian Canal called Charlotte Dundas coal cold water condensing apparatus connection construction crank cylinder discovery effect elastic employed evaporation exhibited expansive force expansive power experiment feet filled with steam fixed flask fly-wheel force of steam Fulton George Stephenson gine Glasgow Greenock heat honor horse-power hundred improvement inches increased ingenious introduced invention inventor iron James Watt Landgrave of Hesse load locomotive locomotive-engine machine machinery Marquis of Worcester mechanical contrivance mechanist ment metal miles an hour mind mode necessary Newcomen's engine object obtained opened paddle-wheels Papin patent piston power of steam present pressure of steam principle produced propelled proportion pump quantity rail railway raising water ratchet-wheels reader Samuel Morland Savery says scientific Smeaton Soho speed stationary engine steam-engine steam-vessel steamboat stroke success sufficient surface tained temperature thought tion tons tube vacuum valve velocity vessel voyage Watt's weight wheels
Pasajes populares
Página 16 - Then Paul stood in the midst of Mars' hill, and said, Ye men of Athens, I perceive that in all things ye are too superstitious. For as I passed by, and beheld your devotions, I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship, him declare I unto you.
Página 32 - A CENTURY OF THE NAMES AND SCANTLINGS OF SUCH INVENTIONS, as at present I can call to mind to have tried and perfected which (my former notes being lost) I have, at the instance of a powerful Friend, endeavoured now in the year 1655 to set these down in such a way as may sufficiently instruct me to put any of them in practice.
Página 33 - I have taken a piece of a whole cannon, whereof the end was burst, and filled it three-quarters full of water, stopping and screwing up the broken end, as also the touch-hole, and making a constant fire under it; within twentyfour hours it burst, and made a great crack...
Página 115 - ... the branches of physical science, might perhaps have been conjectured. But it could not have been inferred from his usual occupations, and probably is not generally known, that he was curiously learned in many branches of antiquity, metaphysics, medicine, and etymology, and perfectly at home in all the details of architecture, music, and law. He was well acquainted too with most of the modern languages— and familiar with their most recent literature. Nor was it at all extraordinary to hear...
Página 122 - The manner of the carriage is by laying rails of timber from the colliery down to the river, exactly straight and parallel, and bulky carts are made with four rowlets fitting these rails, whereby the carriage is so easy, that one horse will draw four or five chaldrons of coals, and is of immense benefit to the coal merchants.
Página 116 - ... to select, from his inexhaustible stores, what might be best adapted to the taste of his present hearers. As to their capacity he gave himself no trouble ; and, indeed, such was his singular talent...
Página 57 - It was by his inventions that its action was so regulated as to make it capable of being applied to the finest and most delicate manufactures, and its power so increased as to set weight and solidity at defiance.
Página 115 - ... instructive in no ordinary degree ; but it was, if possible, still more pleasing than wise, and had all the charms of familiarity, with all the substantial treasures of knowledge. No man could be more social in his spirit, less assuming or fastidious in his manners, or more kind and indulgent towards all who approached him. He rather liked to talk, at least in his latter years ; but though he took a considerable share of the conversation, he rarely suggested the topics on which it was to turn,...
Página 117 - ... weight and brevity of his observations; and set off to the greatest advantage the pleasant anecdotes, which he delivered with the same grave brow, and the same calm smile playing soberly on his lips.
Página 33 - So that, having a way to make my vessels so that they are strengthened by the force within them, and the one to fill after the other, I have seen the water run like a constant fountain stream forty feet high. One vessel of water rarified by fire driveth up forty of cold water...