Spectrum Analysis -- Six Lectures1869 |
Im Buch
Ergebnisse 1-5 von 85
Seite 6
... seen in Fig . 3. The green rays ( g ) in the spectrum ( de ) , when refracted through a second prism ( abc ) , appear as a green band ( NM ) on the second screen . Now the reason why all these different coloured lights , when they reach ...
... seen in Fig . 3. The green rays ( g ) in the spectrum ( de ) , when refracted through a second prism ( abc ) , appear as a green band ( NM ) on the second screen . Now the reason why all these different coloured lights , when they reach ...
Seite 18
... seen , explodes when the chemical activity of the light is great , may be used as a most delicate means of measuring the amount of light of a less intensity . The combination of the gases then occurs slowly , and may be rendered evident ...
... seen , explodes when the chemical activity of the light is great , may be used as a most delicate means of measuring the amount of light of a less intensity . The combination of the gases then occurs slowly , and may be rendered evident ...
Seite 28
... seen ; and on the contrary , where the blue half appeared most distinct , the red half appeared confused , so that the black lines upon it were scarce visible . And between the two places where these images appeared distinct there was ...
... seen ; and on the contrary , where the blue half appeared most distinct , the red half appeared confused , so that the black lines upon it were scarce visible . And between the two places where these images appeared distinct there was ...
Seite 37
... seen from a point at the sea's level , has an apparent magnitude equal to that of the sun , effects on that point the same chemical action as the sun would do if shining from a cloudless sky at a height of 9 ° 53 ′ above the horizon ...
... seen from a point at the sea's level , has an apparent magnitude equal to that of the sun , effects on that point the same chemical action as the sun would do if shining from a cloudless sky at a height of 9 ° 53 ′ above the horizon ...
Seite 43
... seen that the relation of the chemical action of the spectrum from the line E to the line H undergoes a consider- able alteration when the rays have to pass through a column of air 10,735 metres in height instead of 9,647 metres . An ...
... seen that the relation of the chemical action of the spectrum from the line E to the line H undergoes a consider- able alteration when the rays have to pass through a column of air 10,735 metres in height instead of 9,647 metres . An ...
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
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