The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould, Kendall, and Lincoln, 1857 |
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Página 38
... machine or carriage , in order to get strength , thereby adding weight until they are considered to be strong enough . In our vehicles of draught and carriages this is strikingly the case . Now , this ought not to be . Lightness is the ...
... machine or carriage , in order to get strength , thereby adding weight until they are considered to be strong enough . In our vehicles of draught and carriages this is strikingly the case . Now , this ought not to be . Lightness is the ...
Página 46
... machine , with 400 revolutions a minute , makes 400 litres of water boil in about three hours by the mere effect of the friction of the oiled tow against the copper . When once the boiling point is reached , it may be maintained for any ...
... machine , with 400 revolutions a minute , makes 400 litres of water boil in about three hours by the mere effect of the friction of the oiled tow against the copper . When once the boiling point is reached , it may be maintained for any ...
Página 55
... machine of a very simple and far from costly construction . In the middle of a frame , about the size of an ordinary steam engine without its tender , a water wheel , adapted to the above - described canal , will be MECHANICS AND USEFUL ...
... machine of a very simple and far from costly construction . In the middle of a frame , about the size of an ordinary steam engine without its tender , a water wheel , adapted to the above - described canal , will be MECHANICS AND USEFUL ...
Página 56
... machine of these dimensions will carry up the proposed acclivity a weight of from fifteen to twenty tons , or say from sixty to eighty passengers . Should it be required to transport a greater weight , as many other such engines may ...
... machine of these dimensions will carry up the proposed acclivity a weight of from fifteen to twenty tons , or say from sixty to eighty passengers . Should it be required to transport a greater weight , as many other such engines may ...
Página 59
... machine , and if , as is the case in fact , the mixture of steam and heated air be cut off early , and consequently be worked very expansively in the cylinder , so as to reduce it nearly to the pressure of the external atmo- sphere ...
... machine , and if , as is the case in fact , the mixture of steam and heated air be cut off early , and consequently be worked very expansively in the cylinder , so as to reduce it nearly to the pressure of the external atmo- sphere ...
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action æther alloy ammonia animal antimony appears atmosphere axis body boiler bone phosphate bottom carbonic acid cast iron cause centre chemical coal color containing copper cylinder deposit diameter direction earth effect electricity employed engine England experiments fact feet fluid force fossils furnace glass gold grain Greensand Gulf Stream gutta percha heat improvement inches increased invention kilogrammes length less light lime machine manufacture mass material matter means metal miles minute motion nearly observations obtained operation ordinary organic oxide oxygen paper pass patent perfect pig iron pig metal placed plants plate portion pounds present pressure produced Prof proportion puddling furnace quantity recently river rocks salt shaft side silver solution species specimens steam steel strychnia substance sulphur sulphuric acid surface temperature thickness tion tube valve vegetable velocity vessel weight whole wire wood wrought iron zinc
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Página xvi - ... other plants, adapted to the latitude and climate of the State of Maryland, and cause to be carefully noticed upon the records of said institution the character of said experiments, the kind of soil upon which they were undertaken, the system of cultivation adopted, the state of the atmosphere and...
Página 260 - ... wrought into the forms and shapes required, provided that we increase the size and power of our machinery to the extent necessary to deal with such large masses of metal. A few minutes...
Página 258 - ... carbon present allows a part of the oxygen to combine with the iron, which undergoes combustion and is converted into an oxide. At the excessive temperature that the metal has now acquired, the oxide as soon as formed undergoes fusion, and forms a powerful solvent of those earthy bases that are associated with the iron ; the violent ebullition which is going on mixes most intimately the...
Página 305 - Stream, the sounding from Lat. 31° 32', Long. 79° 35', depth 150 fathoms, is mentioned as " a mixture in about equal proportions of Globigerina and black sand, probably greensand, as it makes a green mark when crushed on paper.
Página 400 - STRENGTH AND OTHER PROPERTIES OF METALS; Reports of Experiments on the Strength and other Properties of Metals for Cannon. With a Description of the Machines for Testing Metals, and of the Classification of Cannon in service. By Officers of the Ordnance Department, US Army. By authority of the Secretary of War. Illustrated by 25 large steel plates. Quarto . $10.00 SULLIVAN. — Protection to Native Industry. By Sir EDWARD SULLIVAN, Baronet, author of " Ten Chapters on Social Reforms.
Página 144 - May, and published in the proceedings, shows that a wire of six times the length of the Varna and Balaklava wire, if of the same lateral dimensions, would give thirty-six times the retardation, and thirty-six times the slowness of action.
Página 400 - Gift of the State of New York. 13034, 0. 5. Sixth annual report of the Regents of the University of the State of New York on the condition of the State Cabinet of Natural History, &o.
Página 395 - A communication from Professor Henry of Washington having been read, containing a proposal for the publication of a catalogue of philosophical memoirs scattered throughout the Transactions of Societies in Europe and America, with the offer of co-operation on the part of the Smithsonian Institution, to the extent of preparing and publishing in accordance with the general plan which might be adopted by the British Association, a catalogue of all the American memoirs on physical science, — the Committee...