Annals of Philosophy, 8권;24권Baldwin, Cradock, and Joy, 1824 |
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56개의 결과 중 1 - 5개
35 페이지
... precipitated in the differ- ent phials was collected on a filter , and well washed with water . It was then dissolved in aqua regia , which , after long digestion , left a light - yellow powder , consisting of sulphur . It weighed ...
... precipitated in the differ- ent phials was collected on a filter , and well washed with water . It was then dissolved in aqua regia , which , after long digestion , left a light - yellow powder , consisting of sulphur . It weighed ...
69 페이지
... precipitate , nor cloud . The remainder was neutralized with pure ammonia , further evapo- rated , and poured on a slip of glass ; when it afforded a multi- tude of well - defined crystals of muriate of ammonia . The precipitate from ...
... precipitate , nor cloud . The remainder was neutralized with pure ammonia , further evapo- rated , and poured on a slip of glass ; when it afforded a multi- tude of well - defined crystals of muriate of ammonia . The precipitate from ...
70 페이지
... precipitated by nitrate of silver ; and it becomes more acid , and acquires a slight yellowish tinge by exposure for some time to the air and light ; but by distillation off a little litharge , it may be restored to its original purity ...
... precipitated by nitrate of silver ; and it becomes more acid , and acquires a slight yellowish tinge by exposure for some time to the air and light ; but by distillation off a little litharge , it may be restored to its original purity ...
72 페이지
... precipitated oxide of iron being added , the composition will be nearly as follows , and as it will be found stated in Phillips's Mineralogy , p . 237 , viz . Protoxide of iron , with a trace of man- ganese Carbonic acid .... Silica and ...
... precipitated oxide of iron being added , the composition will be nearly as follows , and as it will be found stated in Phillips's Mineralogy , p . 237 , viz . Protoxide of iron , with a trace of man- ganese Carbonic acid .... Silica and ...
94 페이지
... precipitate appears in the bottom of the vessel , which constantly * From the Philosophical Transactions for 1824 , Part I. accumulates ; at the same time that the surface of 94 [ AUG . Sir H. Davy on the Corrosion of.
... precipitate appears in the bottom of the vessel , which constantly * From the Philosophical Transactions for 1824 , Part I. accumulates ; at the same time that the surface of 94 [ AUG . Sir H. Davy on the Corrosion of.
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acetic acid action alcohol alkali alumina ammonia Annals of Philosophy antimony appears ARTICLE ascertained atom barometer barytes beds blue boiling bulb carbonate of lime carbonic acid chalk chloride clay colour combined compound conductor contains copper crystals decomposed deposited dissolved distilled effect electricity evaporation examination experiments filtered fluate of lime fluid fluoric acid glass globule grains gramme green heat hydrogen hydrogen gas ignition insoluble limestone liquid magnesia manganese mass matter mercury metal mineral minute muriatic acid neutral nitrate nitric acid nitrous observed obtained oxide of copper oxide of iron oxygen paper paratonnerre peroxide of copper phosphate phosphorus plate pole portion potash precipitate produced proportion quantity radiation red sandstone sand selenium silica soda soluble solution specific gravity specimens sprudelstone substance sulphate sulphuric acid surface temperature thermometer tion tube vapour verdigris vessel volume water of crystallization weight wire zinc
인기 인용구
468 페이지 - ... axis of the prism. It must then be placed upon a piece of well polished glass, and the glass heated to a considerable degree. At the proper temperature, which is about that of boiling water, the slice will adhere to the glass so firmly, that even when the...
397 페이지 - ... noisome effluvia ; during its continuance the fish float quite helpless on the turbid surface, and are easily taken. These rapid changes (as capricious in their nature as those of the Euripus), generally continue from thirty minutes to upwards of two hours ; and are succeeded by a breeze from the southward, which quickly increases to heavy gusts.
279 페이지 - ... appeared in chemistry. When we see energies so intense exerted by the ordinary forms of matter, we may...
97 페이지 - A piece of zinc as large as a pea, or the point of a small iron nail, were found fully adequate to preserve forty or fifty square inches of copper ; and this, wherever it was placed, whether at the top, bottom, or in the middle of the sheet of copper, and whether the copper was straight or bent, or made into coils. And where the connection between...
184 페이지 - A thick glass, though as much or more permeable to light than a thin glass of worse quality, allows a much smaller quantity of radiant heat to pass.
295 페이지 - In this instance the loss of sight was toward my left, and was the same whether I looked with the right eye or the left. This blindness was not so complete as to amount to absolute blackness, but was a shaded darkness without definite outline. The complaint was of short duration, and in about a quarter of an hour might be said to be wholly gone, having receded with a gradual motion from the centre of vision obliquely upwards towards the left.
428 페이지 - ... a moist soil. The wire indeed would pretty certainly be dispersed by the lightning, but it would direct it to the ground, and protect the surrounding objects from the stroke. However, it is always better to make the conductor so large as not to be destroyed by the stroke ; and the only motive for substituting a wire for a stout bar is the saving in point of expense. The noise of the thunder generally occasions much alarm, although the danger is then...
237 페이지 - The Century of Inventions of the Marquis of Worcester, from the original MSS. with Historical and Explanatory Notes, and a Biographical Memoir; by Charles F.
97 페이지 - ... form seven divisions, connected only by the smallest filaments that could be left, and a mass of zinc, of the fifth of an inch in diameter, was soldered to the upper division. The whole was plunged under sea water; the copper remained perfectly polished. The same experiment was made with iron ; and now, after a lapse of a month, in both instances, the copper is as bright as when it was first introduced, whilst similar pieces of copper, undefended, in the same...
296 페이지 - ... affection occurred again to myself, without my being able to assign any cause. whatever, or to connect it with any previous or subsequent indisposition. The blindness was first observed, as before, in looking at the face of a person I met, whose left eye was to my sight obliterated. My blindness was in this instance the reverse of the former, being to my right (instead of the left) of the spot to which my eyes were directed ; so that I have no reason to suppose it in any manner connected with...