History of Astronomy |
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... SPECTRUM LINES OF HELIUM AND OF MERCURY BY J. W. BEAMS * AND P. N. RHODES ABSTRACT The times between the appearance of certain lines in the visible region of the spectrum of helium and of mercury have been measured by a method ...
... SPECTRUM LINES OF HELIUM AND OF MERCURY BY J. W. BEAMS * AND P. N. RHODES ABSTRACT The times between the appearance of certain lines in the visible region of the spectrum of helium and of mercury have been measured by a method ...
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... SPECTRUM OF METHANE BY DAVID M. DENNISON ABSTRACT 573 An attempt is made to treat the molecule of methane from the standpoint of the quantum theory and to determine the frequencies of radiation which it may absorb or emit . The ...
... SPECTRUM OF METHANE BY DAVID M. DENNISON ABSTRACT 573 An attempt is made to treat the molecule of methane from the standpoint of the quantum theory and to determine the frequencies of radiation which it may absorb or emit . The ...
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... spectrum with that published by Exner and Haschek , 11 that most of the titan- ium lines shown in their spectrum were absent in the Berichte , 1887 , 1676 . ' Proc . Am . Phil . Soc . 44 , 209 ( 1905 ) . 10 Observations on Columbium ...
... spectrum with that published by Exner and Haschek , 11 that most of the titan- ium lines shown in their spectrum were absent in the Berichte , 1887 , 1676 . ' Proc . Am . Phil . Soc . 44 , 209 ( 1905 ) . 10 Observations on Columbium ...
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... spectrum ; but the inclination of the line is so small that no very detrimental effect will be produced on the definition . It will be observed that in every case displace- ments tend to make the lines in the spectra of the ansæ ...
... spectrum ; but the inclination of the line is so small that no very detrimental effect will be produced on the definition . It will be observed that in every case displace- ments tend to make the lines in the spectra of the ansæ ...
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... spectrum , then , have not the same chemical energy ; and on different compounds the decomposing action by various ... spectrum upon wet - collodion plates was first investigated by J. Müller ( Pogg . , vol . lxvii , p . 133 ) . He ...
... spectrum , then , have not the same chemical energy ; and on different compounds the decomposing action by various ... spectrum upon wet - collodion plates was first investigated by J. Müller ( Pogg . , vol . lxvii , p . 133 ) . He ...
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