The New ChemistryHenry S. King & Company, 1874 - 326 стор. |
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Сторінка 21
... point can detect an inequality in the surface of a plate of glass , but we have , in what we call a beam of light , an agent which does find a passage through its mass . Now , it is perfectly true that we have no absolute knowledge of.
... point can detect an inequality in the surface of a plate of glass , but we have , in what we call a beam of light , an agent which does find a passage through its mass . Now , it is perfectly true that we have no absolute knowledge of.
Сторінка 22
... light . We have a very plausible theory that the phenomena of light are the effects of waves transmitted through a highly - elastic medium we call ether , and that , in the case of our plate of glass , the motion is transmitted through ...
... light . We have a very plausible theory that the phenomena of light are the effects of waves transmitted through a highly - elastic medium we call ether , and that , in the case of our plate of glass , the motion is transmitted through ...
Сторінка 23
... air . Whether , however , there are such things as waves of ether or not , there is something concerned in the phenomena of light which has definite dimensions , that have been measured with as much accuracy as the di-
... air . Whether , however , there are such things as waves of ether or not , there is something concerned in the phenomena of light which has definite dimensions , that have been measured with as much accuracy as the di-
Сторінка 24
... Light - waves . Number of waves in one inch . Number of oscillations in one second . 477,000,000,000,000 39,000 42,000 506,000,000,000,000 44,000 535,000,000,000,000 47,000 577,000,000,000,000 51,000 622,000,000,000,000 54,000 ...
... Light - waves . Number of waves in one inch . Number of oscillations in one second . 477,000,000,000,000 39,000 42,000 506,000,000,000,000 44,000 535,000,000,000,000 47,000 577,000,000,000,000 51,000 622,000,000,000,000 54,000 ...
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acetic ether aëriform alcohol alkali atom of oxygen atomic weights atoms of hydrogen burning butyric acid calcic called carbonic dioxide charcoal chemical change chemistry chlorine color combination combustion compounds consists contain Cornhill criths Crown 8vo cubic cubic centimetres cule definite Edition elementary substances elements energy equal ether evidence experiment facts flame formic acid gases Gazette glass grammes heat Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms illustrate iron lecture light liquid litre mass material metal microcriths mole molecular structure molecular weight molecule of oxygen molecule of water molecules nitric nitric acid nitro-glycerine nitrogen obtained oxide oxygen oxygen gas particles Paternoster Row phenomena phosphorus polarized pole potassic pounds pressure Price Prof Published by Henry quantivalence radical reaction result salt simple sodium solid solution specific gravity sugar sulphur symbol temperature theory tion vapor volatile volume
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