The New ChemistryD. Appleton and Company, 1897 |
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Pagina 1
... LIGHT AND PHOTOGRAPHY IN THEIR AP- PLICATION TO ART , SCIENCE , AND INDUSTRY . By Dr. HERMANN VOGEL , Royal Industrial Academy of Berlin . With 100 Illustrations . $ 2.00 . 15. FUNGI : Their Nature and Uses . By M. C. COOKE , M. A. , LL ...
... LIGHT AND PHOTOGRAPHY IN THEIR AP- PLICATION TO ART , SCIENCE , AND INDUSTRY . By Dr. HERMANN VOGEL , Royal Industrial Academy of Berlin . With 100 Illustrations . $ 2.00 . 15. FUNGI : Their Nature and Uses . By M. C. COOKE , M. A. , LL ...
Pagina 13
... we have , in what we call a beam of light , an agent which , in passing through its mass , does discover differ- ences of the kind we have attempted to describe . Now , it is perfectly true that we have no absolute knowledge of.
... we have , in what we call a beam of light , an agent which , in passing through its mass , does discover differ- ences of the kind we have attempted to describe . Now , it is perfectly true that we have no absolute knowledge of.
Pagina 14
... 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 ...
Pagina 15
... 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-
Pagina 16
... Light - waves . Number of waves in one inch . Number of oscillations in one second . Red . Orange . Yellow .. Green Blue .. Indigo Violet ... 39,000 477,000,000,000,000 42,000 506,000,000,000,000 44,000 535,000,000,000,000 47,000 ...
... Light - waves . Number of waves in one inch . Number of oscillations in one second . Red . Orange . Yellow .. Green Blue .. Indigo Violet ... 39,000 477,000,000,000,000 42,000 506,000,000,000,000 44,000 535,000,000,000,000 47,000 ...
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Termeni și expresii frecvente
acetic ether aëriform alcohol alizarine alkali atom of oxygen atomic weights atoms of hydrogen burning butyric acid called carbonic dioxide charcoal chemical change chemical processes chemist chemistry chlorine color combustion compounds condition consists contain copper criths cubic cubic centimetres cules definite proportions density effect elementary substances elements equal ether evidence example experiment facts flame gases glass grammes heat of formation Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms Illustrations iron lecture light liquid litre magnet mass material metallic microcriths mole molecular structure molecular weight molecule of water molecules nitric nitric acid nitro-glycerine nitrogen nitrous oxide notice obtained oxygen oxygen gas particles phenomena polarized poles potassic pounds pressure principle quantity quantivalence radical reaction relations result salt simple sodic sodium solid solution specific gravity stances sugar sulphur symbols temperature tension theory tion vapor volatile volume wholly
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