Spectrum Analysis -- Six Lectures1869 |
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Seite 38
... scale , and great credit is due to this gentleman for the able manner in which he has brought the difficult subject of the metallurgy of magnesium to its present very satisfactory position . Some fine specimens of crude and distilled ...
... scale , and great credit is due to this gentleman for the able manner in which he has brought the difficult subject of the metallurgy of magnesium to its present very satisfactory position . Some fine specimens of crude and distilled ...
Seite 39
... scale was also placed on the screen , by means of which the distance between the Fraunhofer lines could be accurately measured , and the portion of light employed thus exactly determined . In order to recognise with accuracy the various ...
... scale was also placed on the screen , by means of which the distance between the Fraunhofer lines could be accurately measured , and the portion of light employed thus exactly determined . In order to recognise with accuracy the various ...
Seite 55
... scale in Fig . 22 , through which the rays from the coloured flames ( e and é ) fall upon the prism , being rendered parallel by passing through a lens . The light , having been refracted , is received by the telescope ( ƒ ) , and the ...
... scale in Fig . 22 , through which the rays from the coloured flames ( e and é ) fall upon the prism , being rendered parallel by passing through a lens . The light , having been refracted , is received by the telescope ( ƒ ) , and the ...
Seite 58
... scales ( Fig . 24 ) represent the illuminated divisions seen with the scale of the spectroscope ( g , Fig . 21 ) : the exact position of the bright lines in any spectrum is shown by the black marks below the divisions ; whilst their ...
... scales ( Fig . 24 ) represent the illuminated divisions seen with the scale of the spectroscope ( g , Fig . 21 ) : the exact position of the bright lines in any spectrum is shown by the black marks below the divisions ; whilst their ...
Seite 73
... scale , in the proper choice of a raw material , and in the arrangement of suitable methods of separation , this spectrum analysis affords most valuable aid . Thus it is only necessary to place a drop of mother liquor from any mineral ...
... scale , in the proper choice of a raw material , and in the arrangement of suitable methods of separation , this spectrum analysis affords most valuable aid . Thus it is only necessary to place a drop of mother liquor from any mineral ...
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absorption alkaline Ångström apparatus appear Appendix bands barium bodies bright bands bright lines Bunsen cæsium calcium carbon chemical action Chemical Elements chloride coincident colour comet compounds contains continuous spectrum dark lines detected diagram didymium electric spark elements emitted employed examination exhibits existence experiments eyepiece flame Fourth Series Fraunhofer Fraunhofer's gaseous gases give green heated Huggins hydrochloric acid hydrogen hydrogen line incandescent inch instrument intensity iron Kirchhoff lecture lens light lithium luminous magnesium Major Tennant measures metallic lines milligramme millimetre motion nebula nitrogen object-glass observed obtained oxygen pass peculiar Phil placed plate platinum portion position potassium presence prism produced rays reaction red line refracting refrangible rubidium salt scale seen Sirius slit soda sodium sodium line solar atmosphere solar spectrum spectra spectroscope spectrum analysis stellar strontium substance sun's telescope temperature thallium tube vapour violet visible volatile whilst wire