...Itwas too deep for me, but it is basedupon changing hydrogen into helium,I think...
Various 「Astounding Stories of Super-Science, December 1930」
...This bit ofpower is carried into the helium tubes, and by a system of vacuumpower, is increased millions of times...
Various 「Astounding Stories of Super-Science, June, 1930」
...Three are due to hydrogen;two (discovered by Copeland) are helium lines; others are unknown...
George Forbes 「History of Astronomy」
...The quiescent prominences, whose elevation is often from forty thousand to sixty thousand miles, consist, as the spectroscope shows, mainly of hydrogen and helium...
Garrett Serviss 「Curiosities of the Sky」
...It was, therefore, supposed to be caused by somehitherto unknown body to which the name of helium, or the sun element,was given...
Robert Stawell Ball 「The Story of the Heavens」
...About a dozen less conspicuous lines were graduallyidentified in the spectrum of the prominences and the chromosphere,which appeared also to be caused by this same mysterious helium...
Robert Stawell Ball 「The Story of the Heavens」
...Thus the identity between thecelestial helium and the gas found on our globe was established in themost remarkable manner...
Robert Stawell Ball 「The Story of the Heavens」
...The cloud-like prominences consistmainly of hydrogen, with helium and calcium, while many metals arepresent in the eruptive discharges...
Robert Stawell Ball 「The Story of the Heavens」
...c), the spectra of which are distinguished by the presence of brighthydrogen lines and the bright helium line D3...
Robert Stawell Ball 「The Story of the Heavens」
...Here againwe have hydrogen and helium represented by bright lines, while theorigin of the remaining bright lines is doubtful...
Robert Stawell Ball 「The Story of the Heavens」
...Its spectrum shows that it is composedchiefly of hydrogen, calcium and helium, in the state of vapour...
Cecil G. Dolmage 「Astronomy of To-day」
...To the helium stars (B) belong Rigel, Achernar, β Centauri,Spica, Regulus and β Crucis...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
...The helium lines have vanished...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
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