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Photo-Electric Measurements of the Seasonal Variations in Daylight around Formula, from 1930 to 1937

✍ Scribed by Atkins, W. R. G.

Book ID: 120134582
Publisher: The Royal Society
Year: 1938
Tongue: English
Weight: 449 KB
Volume: 165
Category: Article
ISSN: 0962-8444
DOI: 10.1098/rspa.1938.0070

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## Abstract Daylight received on a horizontal surface has been measured for fourteen years using a Burt vacuum sodium cell and Cambridge thread‐recorder galvanometer. Mean monthly values of daily maxima, in kilolux, are tabulated, also mean monthly values of illumination in kilolux hours. These are