Spectrum Analysis -- Six Lectures1869 |
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Seite vi
... red solar prominences can all be viewed at once ; changes so enormously rapid that Mr. Lockyer has observed one of ... line of hydrogen , as well as the line in the violet , which he finds corresponds to the line marked 2796 on ...
... red solar prominences can all be viewed at once ; changes so enormously rapid that Mr. Lockyer has observed one of ... line of hydrogen , as well as the line in the violet , which he finds corresponds to the line marked 2796 on ...
Seite 10
... line in the red portion termed A ( see Fron- tispiece of the Solar Spectrum ) to a line H in the violet or most refrangible portion of the visible spectrum . Now the difference in the length of the vibration from A to H is but slight ...
... line in the red portion termed A ( see Fron- tispiece of the Solar Spectrum ) to a line H in the violet or most refrangible portion of the visible spectrum . Now the difference in the length of the vibration from A to H is but slight ...
Seite 12
Henry E. Roscoe. rays existing especially in the red portion of the spec ... line A. In fact it has been noticed , by those who have made careful measure ... lines only , there is no perceptible luminous or chemical activity ; in that ...
Henry E. Roscoe. rays existing especially in the red portion of the spec ... line A. In fact it has been noticed , by those who have made careful measure ... lines only , there is no perceptible luminous or chemical activity ; in that ...
Seite 13
... lines , two , at least , of these three forms of action exist simultaneously . The intensity of each at any point of the spectrum is measured by the vertical line ... red . This may be clearly ex- hibited with the electric light in the ...
... lines , two , at least , of these three forms of action exist simultaneously . The intensity of each at any point of the spectrum is measured by the vertical line ... red . This may be clearly ex- hibited with the electric light in the ...
Seite 18
... red glass , they cannot pass through ; and the consequence is , there has ... lines marked with the letters of the alphabet from A to w , at the bottom of the ... line in the indigo marked G , 1 See Appendix C for description of method ...
... red glass , they cannot pass through ; and the consequence is , there has ... lines marked with the letters of the alphabet from A to w , at the bottom of the ... line in the indigo marked G , 1 See Appendix C for description of method ...
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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