The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volume 17Gould, Kendall, and Lincoln, 1867 |
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Pagina 31
... portions of the dams as may remain will be entirely removed , so as to leave the river as unobstructed as at present . The tunnel proper is to be formed of the most perfect brick and stone masonry , backed with concrete , while the ...
... portions of the dams as may remain will be entirely removed , so as to leave the river as unobstructed as at present . The tunnel proper is to be formed of the most perfect brick and stone masonry , backed with concrete , while the ...
Pagina 32
... portion of it goes through solid red sand - stone , not requiring any brick arch- ing for that distance . The grade of the tunnel is 2,200 feet above the level of the sea , or 1,500 feet higher than low - water mark of the Ohio river at ...
... portion of it goes through solid red sand - stone , not requiring any brick arch- ing for that distance . The grade of the tunnel is 2,200 feet above the level of the sea , or 1,500 feet higher than low - water mark of the Ohio river at ...
Pagina 39
... portions touched by the solution of potash become completely insoluble , and of very great adherence . In order to obtain an insoluble silicate in the interior of a substance , all that is necessary is to impregnate it by im- mersing it ...
... portions touched by the solution of potash become completely insoluble , and of very great adherence . In order to obtain an insoluble silicate in the interior of a substance , all that is necessary is to impregnate it by im- mersing it ...
Pagina 42
... portion of the male screw which exactly fits into the screw cut in the interior of the hub of the pulley . If there be no resistance at all to the motion of the pul- ley , shaft , spring , and pulley will all start together , and ...
... portion of the male screw which exactly fits into the screw cut in the interior of the hub of the pulley . If there be no resistance at all to the motion of the pul- ley , shaft , spring , and pulley will all start together , and ...
Pagina 44
... portion being ten to the inch , and that on the lower part nine to the inch . The head of the bolt is six - sided ... portions of the bolt are tapped in the boxes made to fit the shaft . The above is sufficient to explain to any ...
... portion being ten to the inch , and that on the lower part nine to the inch . The head of the bolt is six - sided ... portions of the bolt are tapped in the boxes made to fit the shaft . The above is sufficient to explain to any ...
Overige edities - Alles bekijken
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in ..., Volume 5 Volledige weergave - 1854 |
The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art Volledige weergave - 1857 |
Veelvoorkomende woorden en zinsdelen
acid action Albertite American amount aniline animal appears atmosphere bitumen body bolide bright lines cable carbonic carbonic acid cause centimetres chemical chloride cloth coal color combustion containing copper cylinder dark diameter distance earth effect electricity engine existence experiments exposed fact feet flame force furnace gaseous glass gun-cotton heat hundred hydrogen inches increase infusoria iron lake light magnesium mass material matter means meat mechanical metal metres miles minute muscle muscular nebula nitrate nitrogen nitroglycerine object observations obtained ordinary oxide oxygen ozone paper Parkesine phosphorus photographs plants plate portion potash pounds present produced Prof quantity rocks salt Science Scientific Scientific American shot silicate soda sodium sodium amalgam solar solution species spectra spectrum stars steam steel substance sulphate sulphur sulphuric acid surface telescope temperature tion tube tunnel vapor vessels weight zinc
Populaire passages
Pagina 303 - When the ether spray thus produced is directed upon the outer skin, the skin is rendered insensible within a minute; but the effects do not end here. So soon as the skin is divided, the ether begins to exert on the nervous filaments the double action of cold and of etherization : so that the narcotism can be extended deeply to any desired extent. Pure rectified ether used in this manner is entirely negative ; it causes no irritation, and may be applied to a deep wound, as I shall show, without any...
Pagina 261 - a special mineralization producing a bituminous matter instead of coal or lignite. This operation is not attributable to heat, nor of the nature of a distillation, but is due to chemical reactions at the ordinary temperature, and under the normal conditions of climate.
Pagina 199 - For the sick-room, free ventilation, when it can be secured, together with an even temperature, is all that can be required. " 2. For rapid deodorization and disinfection, chlorine is the most effective agent known. "3. For steady and continuous effect ozone is the best agent known. "4, In the absence of ozone, iodine exposed, in the solid form, to the air is the best.
Pagina 344 - They may be gaseous nebulae, which by the loss of heat or the influence of other forces have become crowded with portions of matter in a more condensed and opaque condition. 6. If the observations of Lord...
Pagina 20 - I sat in the electricians' room, a flash of light came up from the deep, which having crossed to Ireland, came back to me in mid-ocean, telling that those so dear to me, whom I had left on the banks of the Hudson, were well, and following us with their wishes and their prayers. (Applause.) This was like a whisper of God from the sea, bidding me keep heart and hope.