Spectrum Analysis -- Six Lectures1869 |
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Seite v
... present in such a rapid state of growth that much of the subject is incomplete , and , therefore , necessarily unsuited to the public at large . I hope , however , that the addition of many extracts from the most important Memoirs on ...
... present in such a rapid state of growth that much of the subject is incomplete , and , therefore , necessarily unsuited to the public at large . I hope , however , that the addition of many extracts from the most important Memoirs on ...
Seite 2
... present in the atmosphere of the sun , at a distance of ninety - one millions of miles , and still more extraordinary that in the stars the existence of such metals as iron and sodium should be ascertained beyond a shadow of doubt . We ...
... present in the atmosphere of the sun , at a distance of ninety - one millions of miles , and still more extraordinary that in the stars the existence of such metals as iron and sodium should be ascertained beyond a shadow of doubt . We ...
Seite 3
... present , the sunlight shining so brightly , we are unable to utilize it , and illustrate by experiments made with the sunlight itself the points which we wish to explain . In this climate , however , even if we could conveniently do it ...
... present , the sunlight shining so brightly , we are unable to utilize it , and illustrate by experiments made with the sunlight itself the points which we wish to explain . In this climate , however , even if we could conveniently do it ...
Seite 24
... present in every kind of sunlight ; that moonlight , as well as the light of the planet Venus , exhibits the same dark lines . Fraunhofer measured the refractive indices of these lines , —that is , determined their relative positions in ...
... present in every kind of sunlight ; that moonlight , as well as the light of the planet Venus , exhibits the same dark lines . Fraunhofer measured the refractive indices of these lines , —that is , determined their relative positions in ...
Seite 38
... present very satisfactory position . Some fine specimens of crude and distilled magnesium weighing 3 lbs . were exhibited as manufactured by Mr. Sonstadt's process , by Messrs . Mellor & Co. of Manchester . The wire is now to be had at ...
... present very satisfactory position . Some fine specimens of crude and distilled magnesium weighing 3 lbs . were exhibited as manufactured by Mr. Sonstadt's process , by Messrs . Mellor & Co. of Manchester . The wire is now to be had at ...
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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