Word: nitrogen
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Dates: during 1901-1901
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...atmosphere of the sun. The experiment was performed by Professor Trowbridge and consisted in a careful study of the effect of powerful discharges of electricity on the spectra of various gases. Although great care was taken in drying and pur fying these gases, it was found that hydrogen, nitrogen and rarefied air gave substantially the same spectrum under the same conditions and as a result of the powerful electrical discharges the aqueous vapor was released from the walls of the spectrum tubes. From this investigation it was concluded that oxygen does exist in the atmosphere...