Spectrum Analysis -- Six Lectures1869 |
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Seite 217
... Major Tennant himself , by means of the Sheepshanks equatorial , of 4 · 6 inch aperture and 5 feet focal length . This had been mounted equatorially by the late Mr. Cooke , and was suitable for all latitudes in the British Isles , but ...
... Major Tennant himself , by means of the Sheepshanks equatorial , of 4 · 6 inch aperture and 5 feet focal length . This had been mounted equatorially by the late Mr. Cooke , and was suitable for all latitudes in the British Isles , but ...
Seite 219
... Major Tennant has called attention , was very evident . This spiral formation Major Tennant ascribes to the confliction of an ascending current and one at right angles to it . Since then Mr. Warren De la Rue has procured some very ...
... Major Tennant has called attention , was very evident . This spiral formation Major Tennant ascribes to the confliction of an ascending current and one at right angles to it . Since then Mr. Warren De la Rue has procured some very ...
Seite 220
... Major Tennant had induced to make observations at Aden , it must be stated that a drawing of the prominences which he sent to Major Tennant led that gentleman to conclude that no change had occurred in them between the epoch of Aden and ...
... Major Tennant had induced to make observations at Aden , it must be stated that a drawing of the prominences which he sent to Major Tennant led that gentleman to conclude that no change had occurred in them between the epoch of Aden and ...
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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