The Sun glows

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Abstract
THE recent brilliant lighting up of the skies after sunset and before sunrise have attracted universal attention, mingled in many instances with not a little superstitious dt•ead.Physicists have taken the matter in hand and have advanced the most diverse hypotheses for an explanation.One of these is that immense volumes of volcanic gas were ejected on Aug. 26, 1883, into the atmosphct'e from the Straits of Sunda, and that these glows have been due to the diffusion of this gas, and furthermore that this gas has so enveloped the eat•th as to keep in its summer warmth, so that a mild winter has resulted.Another theory, which seems to have gained the most adherents of any, is that the volcanic eruption mentioned above filled the air to a great height with ashes and that the upper currents have distributed these ashes over the earth, thus causing an ash canopy, reflection from which results in the glow.This is the theory so ably advocated by Mr. Lockyer in Nature, and more recently b.yMr. Upton in Science.The seemingly unusual natut'e of the phenomenon, calling for nn extraordinary explanation, has induced some to ad vance the theory that the earth in its orbit has encountered a stream of minute meteors or a cloud of cosmic dust, and that the glow * Hnrtley's analysis gave (Ca, La, Di, Yt.),O" Gl'69, P,O.2-1'6-1, Al,O., Fe,O" CaO, MgO with some p,O.1'93, ::)iO, 3'76, combined H 2 0 7'50=99',;2.The above excludes 5'69 impurities, loco cit., p. 214.Other analyses nrc given ill the paper; in one of which 23'19 per cent.cerolls oxide, and 2'09 yttrillm oxide were obtained.
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Authors H. A. Hazen
Journal american journal of science
Year 1884
DOI
10.2475/ajs.s3-27.159.201
URL
https://ajsonline.org/article/65450.pdf
Keywords Keywords not found

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