The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volume 17Gould, Kendall, and Lincoln, 1867 |
Vanuit het boek
Resultaten 1-5 van 41
Pagina 37
... lined with zinc or other metal , are set up on edge , so as to form a kind of trough for receiving the concrete . By the insertion of suitable cores , holes for the 4 MECHANICS AND USEFUL ARTS . 37 feet and the rest of 242 feet, with a ...
... lined with zinc or other metal , are set up on edge , so as to form a kind of trough for receiving the concrete . By the insertion of suitable cores , holes for the 4 MECHANICS AND USEFUL ARTS . 37 feet and the rest of 242 feet, with a ...
Pagina 38
... metal from these noxious impuri- ties . He also finds that no substance is capable of acting as a puzzuolana except the simple or double silicates of lime , con- taining only from 30 to 40 per cent . of silica , and sufficiently basic ...
... metal from these noxious impuri- ties . He also finds that no substance is capable of acting as a puzzuolana except the simple or double silicates of lime , con- taining only from 30 to 40 per cent . of silica , and sufficiently basic ...
Pagina 42
... metal which precisely fits the slot . From each side of this small piece of metal , there projects beyond the surface of the shaft a small portion of the male screw which exactly fits into the screw cut in the interior of the hub of the ...
... metal which precisely fits the slot . From each side of this small piece of metal , there projects beyond the surface of the shaft a small portion of the male screw which exactly fits into the screw cut in the interior of the hub of the ...
Pagina 45
... metal from 20 to 25 inches square is placed , and a series of nails cut from its edge at each stroke of the knives . To do this , there are two series of cutters , viz . , bed and moving cutters , so arranged that by shifting the nail ...
... metal from 20 to 25 inches square is placed , and a series of nails cut from its edge at each stroke of the knives . To do this , there are two series of cutters , viz . , bed and moving cutters , so arranged that by shifting the nail ...
Pagina 46
... metal . ON THE UTILIZATION OF PEAT AS FUEL . Au invention of considerable practical importance for the con- densing and moulding of peat for use as fuel , has recently been brought to public notice by Mr. T. H. Leavitt . In a pamphlet ...
... metal . ON THE UTILIZATION OF PEAT AS FUEL . Au invention of considerable practical importance for the con- densing and moulding of peat for use as fuel , has recently been brought to public notice by Mr. T. H. Leavitt . In a pamphlet ...
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.