Annual of Scientific Discovery: Or, Year-book of Facts in Science and ArtGould and Lincoln, 1871 |
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Pagina xvii
... inch glass , with an exposure of 13 minutes . It is , of course , by no means so good as it would have been had the sky been truly clear ; but it shows a great deal of detail , curved filaments and radial shadings far better than ever ...
... inch glass , with an exposure of 13 minutes . It is , of course , by no means so good as it would have been had the sky been truly clear ; but it shows a great deal of detail , curved filaments and radial shadings far better than ever ...
Pagina 24
... inches above the bars . In very wide furnaces we use 3 plungers , and the shaft that works the plungers is moved by a ratchet . A very simple arrangement enables the attendant to vary the rate of feed by causing the div- ing eccentric ...
... inches above the bars . In very wide furnaces we use 3 plungers , and the shaft that works the plungers is moved by a ratchet . A very simple arrangement enables the attendant to vary the rate of feed by causing the div- ing eccentric ...
Pagina 25
... inches , and we find in the average of cases that a complete stroke about every 2 minutes is sufficient to give the progressive motion necessary to maintain a proper thickness of fire . As the bars themselves form an important part of ...
... inches , and we find in the average of cases that a complete stroke about every 2 minutes is sufficient to give the progressive motion necessary to maintain a proper thickness of fire . As the bars themselves form an important part of ...
Pagina 26
... inch holes into the centre of a fur- nace where one or two bars had been removed for its reception . " Adequate ... inches apart are then intro- duced , their upper surfaces being level with the common fire- bars . On these bearers ...
... inch holes into the centre of a fur- nace where one or two bars had been removed for its reception . " Adequate ... inches apart are then intro- duced , their upper surfaces being level with the common fire- bars . On these bearers ...
Pagina 27
... inches high pierced with numerous small holes , an arrangement not differing widely from that of Wye Williams , except that the tunnel , being of loose cast - iron pieces , is no more liable to deterioration by heat than common fire ...
... inches high pierced with numerous small holes , an arrangement not differing widely from that of Wye Williams , except that the tunnel , being of loose cast - iron pieces , is no more liable to deterioration by heat than common fire ...
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Veelvoorkomende woorden en zinsdelen
action alcohol alizarine American ammonia amount animals anthracene apparatus appears atmosphere beds Bessemer process body boiler British Association cable caisson carbonic acid cent centimetre centre Chassepot chemical chlorhydric acid chloride cloth Coccoliths color containing copper cylinder deposits depth diameter disease effect electric employed engine exist experiments fact feet fluid formation fossils furnace gases geological glacier gneiss heat hydrogen inches iron Lake less light lime limestone liquid magnesium manganese manufacture mass material matter means metal method miles mixture nature Neocomian observations obtained ordinary organic oxide oxygen paper pass Pébrine phosphate phosphorus pipes placed plate portion potassium pounds present pressure produced Professor quantity river rocks salt side silicic silicic acid silicon sodium solution species specimens steam stone substance sulphuric acid surface temperature theory thickness tion tons tube vapor vessel weight White Nile whole wire zinc
Populaire passages
Pagina 184 - Report of the Commissioners appointed in 1868 to inquire into the best means of preventing the pollution of Rivers (Mersey and Ribble basins).
Pagina 177 - USA, read a paper on this subject, of which the following is an abstract : — " Cast iron — the raw material from which the malleable metal is made — may be formulated approximately as follows : — Silicon (Si), 5 to 3 per cent. Phosphorus (P), 05 to 2 per cent. Manganese (Mn) , 0 to 20 per cent. Sulphur (S), 25 to 2 per cent. Carbon (C), 2 to 5 per cent. Iron (Fe), 90 to 9G.5 per cent.
Pagina 263 - There can be no reason, then, for doubting that, among insects, contagious and infectious diseases, of great malignity, are caused by minute organisms which are produced from preexisting germs, or by Homogenesis ; and there is no reason, that I know of, for believing that what happens in insects may not take place in the highest animals. Indeed there is already strong evidence that some diseases of an extremely malignant and fatal character to which man is subject are as much the work of minute organisms...
Pagina 129 - on partially liquefying carbonic acid by pressure alone, and gradually raising at the same time the temperature to 88° Fahrenheit, the surface of demarcation between the liquid and the gas became fainter, lost its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering strisa throughout its entire mass.