The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould, Kendall, and Lincoln, 1857 |
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Результати 1-5 із 31
Сторінка 39
... plate , as the strength of the materials increases as the square of the thickness . The strength is further increased by a bulkhead being placed in the widest part of the ship , amidships , and by other bulk- heads placed midway between ...
... plate , as the strength of the materials increases as the square of the thickness . The strength is further increased by a bulkhead being placed in the widest part of the ship , amidships , and by other bulk- heads placed midway between ...
Сторінка 51
... plate will withstand from 56,000 to 60,000 pounds per square inch of sectional area - the joints will give way at about 34,000 pounds , which shows the importance of seeing that the rivets and other fastenings are always in sound ...
... plate will withstand from 56,000 to 60,000 pounds per square inch of sectional area - the joints will give way at about 34,000 pounds , which shows the importance of seeing that the rivets and other fastenings are always in sound ...
Сторінка 55
... plate . " The motive power to be employed is a stream of water , about a foot deep , flowing -or rather rushing - down this canal . It is clear , therefore , that an abun- dant supply of water on the summit to be reached is a necessary ...
... plate . " The motive power to be employed is a stream of water , about a foot deep , flowing -or rather rushing - down this canal . It is clear , therefore , that an abun- dant supply of water on the summit to be reached is a necessary ...
Сторінка 72
... plate of iron , of any required thickness and size , into a compact roll or coil ; next bringing it to a welding heat in a suitable furnace , and then drawing it to the required shape under a hammer ; or by passing it , when at a ...
... plate of iron , of any required thickness and size , into a compact roll or coil ; next bringing it to a welding heat in a suitable furnace , and then drawing it to the required shape under a hammer ; or by passing it , when at a ...
Сторінка 106
... plate or upper frame . It must be understood that the tuning pins , to which one end of the strings is attached , are inserted in a pin block or wrest plank , and pass through holes drilled in the iron frame much larger than the pins ...
... plate or upper frame . It must be understood that the tuning pins , to which one end of the strings is attached , are inserted in a pin block or wrest plank , and pass through holes drilled in the iron frame much larger than the pins ...
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The Annual of Scientific Discovery, Or, Year-book of Facts in Science ..., Том 5 Повний перегляд - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in Science ..., Том 5 Повний перегляд - 1854 |
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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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Сторінка 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...
Сторінка 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...
Сторінка 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...
Сторінка 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.
Сторінка 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.
Сторінка 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.
Сторінка 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.
Сторінка 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...