Smithsonian Contributions to Knowledge, Volumen29Smithsonian Institution, 1903 |
Dentro del libro
Resultados 1-5 de 99
Página 7
... less complicated . Starting from V , a vacuum- tube containing the substance whose radiations are to be examined ( and which is usually inclosed in a metal box in order that it may be raised to any required temperature ) , the light is ...
... less complicated . Starting from V , a vacuum- tube containing the substance whose radiations are to be examined ( and which is usually inclosed in a metal box in order that it may be raised to any required temperature ) , the light is ...
Página 8
... less difficulty than the thin film . It may be mentioned that with this form of instrument the interference fringes in white light present a purity and gorgeousness of coloration that are surpassed only by the colors of the polariscope ...
... less difficulty than the thin film . It may be mentioned that with this form of instrument the interference fringes in white light present a purity and gorgeousness of coloration that are surpassed only by the colors of the polariscope ...
Página 13
... less bright than those of hydrogen , and in order to obtain satisfactory results , the current had to be increased so far that the tube was frequently broken . Notwithstanding the somewhat uncertain character of the observations , it ...
... less bright than those of hydrogen , and in order to obtain satisfactory results , the current had to be increased so far that the tube was frequently broken . Notwithstanding the somewhat uncertain character of the observations , it ...
Página 20
... less than 5 is less than 5 mm . the effect of collisions has almost en- tirely ceased . If we take as variables and p , the results agree very closely with the straight line - dk p , in which ò̟ = 0.047 ( the " half - width " of the ...
... less than 5 is less than 5 mm . the effect of collisions has almost en- tirely ceased . If we take as variables and p , the results agree very closely with the straight line - dk p , in which ò̟ = 0.047 ( the " half - width " of the ...
Página 22
... less than their distance apart , there can be no limit . SUPPLEMENT . I. It has already been pointed out that in many cases it is difficult or impossible to decide between two or more distributions of lines which give very nearly the ...
... less than their distance apart , there can be no limit . SUPPLEMENT . I. It has already been pointed out that in many cases it is difficult or impossible to decide between two or more distributions of lines which give very nearly the ...
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Términos y frases comunes
absorbed absorption actinic amount animals apparatus argon atomic weight balance barometer bell jars Blue bolometer breath Brown-Séquard and d'Arsonval capacity carbonic acid cent chemical chlorine closed by fusion CO₂ color tube computed condenser constant correction counterpoise cubic centimetres cylinder density of oxygen desiccator diameter drying tube dust effect error eudiometer exhausted expired air figure filled flask fluid fusible metal gas-holder gases globe grammes heat hydrogen hydrostatic weighing increase injected ionized leakage liquid litres aspirated litres per hour magnesium manometer means measured mercury method millimetre mixture moisture nitrogen nuclei observations organic matter oxalic acid oxide oxidizable oxygen palladium passed pentoxide phosphorus phosphorus pentoxide placed pressure produced proportion quantity rabbits ratio reduced scale series of experiments shown in Fig Smithsonian solution stopcock sulphuric acid temperature thermometer tion tube containing vacuum vapor vessels voltameter volume ΙΟ