The Larger Opportunities for Research On the Relations of Solar And Terrestrial
The Larger Opportunities for Research On the Relations of Solar And Terrestrial
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In our eReader you can find the full English version of the book. Read The Larger Opportunities for Research On the Relations of Solar And Terrestrial Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Larger Opportunities for Research On the Relations of Solar And Terrestrial
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Whitney, Bassour (Algeria), and now the investigations supported by the Smithsonian Institution from its private funds in North Carolina and Chile have all united in giving the impression that the solar radiation is not constant, but varies from day to day through a range of certainly five and possibly at times ten per cent. The conclusion that the sun is a variable star is confirmed in several ways but most notably by the results of measurements made by the Smithsonian Astrophysical Observator...y at Mt. Wilson, California, on the distribution of energy along the diameter of the solar image. These measurements indicate, as was well known before, that the edge of the sun's disc is less bright than the center, and that the contrast of brightness between the center and the edge varies according to the wave-length of light, being greater for short wave-lengths, less for long.
But the measurements of recent years have shown that not only is there a variation of contrast by wave-length, but also a variation of contrast with the time.
What to read after The Larger Opportunities for Research On the Relations of Solar And Terrestrial?
You can find similar books in the "Read Also" column, or choose other free books by C G Charles Greeley Abbot to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Whitney, Bassour (Algeria), and now the investigations supported by the Smithsonian Institution from its private funds in North Carolina and Chile have all united in giving the impression that the solar radiation is not constant, but varies from day to day through a range of certainly five and possibly at times ten per cent. The conclusion that the sun is a variable star is confirmed in several ways but most notably by the results of measurements made by the Smithsonian Astrophysical Observator...y at Mt. Wilson, California, on the distribution of energy along the diameter of the solar image. These measurements indicate, as was well known before, that the edge of the sun's disc is less bright than the center, and that the contrast of brightness between the center and the edge varies according to the wave-length of light, being greater for short wave-lengths, less for long.
But the measurements of recent years have shown that not only is there a variation of contrast by wave-length, but also a variation of contrast with the time.
What to read after The Larger Opportunities for Research On the Relations of Solar And Terrestrial?
You can find similar books in the "Read Also" column, or choose other free books by C G Charles Greeley Abbot to read onlineMoreLess
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