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Types of Iridescent Clouds - Nature
Nature· 4 days agoIN the winter of 1930–31, I was measuring the height of the aurora in northern Ontario. On one occasion there had been a well-developed single arc which had remained unusually ...
Aurora Australis - Nature
Nature· 4 days agoAfter my arrival at Manado (Celebes) I was just writing a few lines about it for the readers of NATURE, with the purpose of knowing whether at the same time an aurora, or ...
Day Auroras in the Arctic Regions - Nature
Nature· 4 days agoThe other evening (last Thursday) I had a conversation with a distinguished magnetician and Arctic explorer, and he informed me that he has often seen the Aurora in broad ...
Day Auroras - Nature
Nature· 4 days agoOn June 15, 1870, at 9 A.M., I witnessed here as complete a display of auroral motions in the cirrus cloud as ever I beheld in a midnight sky; and from that date I dismissed ...
The Aurora Borealis of November 5 - Nature
Nature· 4 days agoON November 5, from 6.30 to 7.40 p.m., long after the last lingering trace of sunset had vanished, the heavens along the northern horizon were illuminated as if by an approaching dawn. A luminous ...
The Magnetic Storm of June 17, and Aurora - Nature
Nature· 4 days agoBARNARD'S interesting letter dated June 25, in NATURE of July 15, on what is termed “The Great Aurora of June 16, 1915,” is at first sight rather puzzling to the non-astronomical ...
Antarctic Geophysics - Nature
Nature· 4 days agoTHE two reports referred to belowx are the records of the aurora observations and gravity determinations made during Capt. Scott's last south polar expedition, 1910–1913.
The Sources of Light 1 - Nature
Nature· 4 days agoWHEN the sun rises in the morning, the darkness of the night seems to fade away, and, wherever we look, without or within, all the air and space about us appears to be full of light. When evening ...
Extent and Principal Zone of the Aurora Borealis - Nature
Nature· 4 days agoIN the Wochenschrift für Astronomie, Herr H. Fritz has recently compared his “Catalogue of Polar Lights,” which contains notes of all auroræ which have been observed since ...
Aurora - Nature
Nature· 4 days agoAN aurora of considerable proportions and of the radiant form was visible here on Wednesday night. At 9 p.m. the centre of energy was in the north-west, and from a large blunted ...
