The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art, Volumen3Gould, Kendall, and Lincoln, 1852 |
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Página 19
... cylinder , the lower the working cylinder . The lower one has a concave bottom , forming the roof of one of the furnaces ; and the piston has a chamber bolted to it with corresponding concavity , filled with fire - clay and ashes , as a ...
... cylinder , the lower the working cylinder . The lower one has a concave bottom , forming the roof of one of the furnaces ; and the piston has a chamber bolted to it with corresponding concavity , filled with fire - clay and ashes , as a ...
Página 20
... cylinder , the piston rises , and the air in the upper cylinder is forced into the receiver ; other valves then open , so that the air passes through the wire regenerators , and has its temperature augmented . Before the piston arrives ...
... cylinder , the piston rises , and the air in the upper cylinder is forced into the receiver ; other valves then open , so that the air passes through the wire regenerators , and has its temperature augmented . Before the piston arrives ...
Página 21
... cylinder of two pistons , entirely independent of each other , and whose piston rods pass through opposite ends of the cylinder . One piston rod connects , directly through a connecting rod , to a crank on the main shaft , and the other ...
... cylinder of two pistons , entirely independent of each other , and whose piston rods pass through opposite ends of the cylinder . One piston rod connects , directly through a connecting rod , to a crank on the main shaft , and the other ...
Página 22
... cylinders are located between the steam cylinders , directly over the condenser , and are worked by piston rods connecting with the main shaft by a crank at its centre . This centre - piece of the main shaft is wrought out of the ...
... cylinders are located between the steam cylinders , directly over the condenser , and are worked by piston rods connecting with the main shaft by a crank at its centre . This centre - piece of the main shaft is wrought out of the ...
Página 23
... cylinder situated at one side of the large or engine cylinder , and receiving two strokes for one of the engine , either way , through the motion of a bell - crank attached to and operated from the beam ; the said small piston , through ...
... cylinder situated at one side of the large or engine cylinder , and receiving two strokes for one of the engine , either way , through the motion of a bell - crank attached to and operated from the beam ; the said small piston , through ...
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action æther Albany American Association ammonia animal appearance atmosphere body boiler Boston carbonic acid cast-iron centre chemical chloride coal color connected construction containing copper coral cylinder daguerreotype deposited diameter direction discovery distance earth effect engine exhibited existence experiments fact feet flax fossils geological glass gutta percha heat inches invention iodine iron Lake Lake Superior length light lime limestone machine magnesia magnetic manufacture mass Mastodons means ment metal miles mineral minute motion nature nearly nitric acid observations obtained oxide oxygen ozone paper passed patent phosphoric acid pile piston plants plate polyps portion present produced Prof quantity rain recently reef ring river rocks salt sandstone scientific side silica Silurian solution species specimens steam strata substance sulphate sulphuric sulphuric acid supposed surface temperature tion trade winds trilobite tube vapor vegetable velocity vessel weight winds wire York
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Página 363 - It is well to observe, that neither in these nor in other poisoneaters is there the least trace of an arsenic cachexy discernible ; that the symptoms of a chronic arsenical poisoning never show themselves in individuals who adapt the dose to their constitution, even although that dose should be considerable. It is not less worthy of remark, however, that when, either from inability to obtain the acid, or from any other cause, the perilous indulgence is stopped, symptoms of illness are sure to appear,...
Página 19 - ... substances to the acting medium at certain intervals, or at each successive stroke of the motive engine — the principal supply of caloric being thereby rendered independent of combustion or consumption of fuel. Accordingly, whilst in the steam engine the caloric is constantly wasted by being passed into the condenser, or by being carried off into the atmosphere, in the improved engine, the caloric is employed over and over again, enabling me to dispense with the employment of combustibles,...
Página 132 - It is in this state that I prefer to employ it. 6. Into the iodide thus prepared and modified the plate is dipped for a few seconds. All these operations may be performed by moderate daylight, avoiding, however, the direct solar rays. 7. A solution is made of nitrate of silver, containing about 70 grains to one ounce of water.
Página 190 - The flax fibre, soaked in the solution of sub-carbonate of soda, was no sooner immersed in the vessel containing the acidulated water than its character became at once changed from that of a damp, rigid aggregation of flax to a light, expansive mass of cottony texture, increasing in size like leavening dough, or an expanding sponge.
Página 357 - In the first publication of the Huttonian theory, it was declared that we can neither see the beginning nor the end of that vast series of phenomena which it is our business as geologists to investigate. After sixty years of renewed inquiry, and after we have greatly enlarged the sphere of our knowledge, the same conclusion seems to me to hold true. But if any one should appeal to such results in support of the doctrine of an eternal succession, I may reply that the evidence has become more and more...
Página 224 - Playfair, we have given the result of some examinations of stalactites from caverns in Germany, and from the vaults of old castles upon the Rhine, made with the view of ascertaining the fact of the presence or absence of organic matter in these bodies, either combined or uncombined. The result may be 'stated in the words of the author, Prof. LIEBIG : The stalactites from the caverns " contain no trace of vegetable matter, and no humic acid, and may be heated to redness without becoming black.
Página 308 - ... recent and trustworthy work the physician can obtain, and it is to be hoped that an English translation will soon appear, though Cobbold's Entozoa is most excellent in its way; and the best English work on the subject. RECENT RESEARCHES ON THE NERVOUS SYSTEM OF THE...
Página 111 - The disturbance of the tension in one part is accompanied instantly by a disturbance of the tension in every other part ; for as the sum of the external powers of a system, unaltered at its origin, is definite and cannot be changed ; so any alteration either of intensity or direction amongst the lines of force at one place, must be accompanied by a corresponding change at every other. So if a mass of soft iron on the east side of a magnet causes a concentration of the lines of force from the magnet...