The New Encyclopaedia Britannica, Volume 23Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 173
... spectrum briefly shows the bright lines produced by tenuous hot luminous gas . Except during eclipses , this part of the spectrum is masked by the glare of the Sun's disk . Study of the flash spectrum gives information about the ...
... spectrum briefly shows the bright lines produced by tenuous hot luminous gas . Except during eclipses , this part of the spectrum is masked by the glare of the Sun's disk . Study of the flash spectrum gives information about the ...
Page 288
... spectrum mapping 17 : 799g light spectrum research 10 : 933g solar spectrum research 2 : 235a spectroscopy theory development 17 : 457g Fraunhofer lines , in astronomical spectros- copy , any of the dark ( absorption ) lines in the ...
... spectrum mapping 17 : 799g light spectrum research 10 : 933g solar spectrum research 2 : 235a spectroscopy theory development 17 : 457g Fraunhofer lines , in astronomical spectros- copy , any of the dark ( absorption ) lines in the ...
Page 471
... spectrum 1 : 989e gentian , common name for approximately 400 species of the genus Gentiana ( family Gentianaceae , q.v. ) . Most gentians are peren- nials that grow in hilly or mountainous re- gions , and they usually have blue ...
... spectrum 1 : 989e gentian , common name for approximately 400 species of the genus Gentiana ( family Gentianaceae , q.v. ) . Most gentians are peren- nials that grow in hilly or mountainous re- gions , and they usually have blue ...
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