On Light in Three Courses Delivered At Aberdeen in November 1883 December 1
On Light in Three Courses Delivered At Aberdeen in November 1883 December 1
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In our eReader you can find the full English version of the book. Read On Light in Three Courses Delivered At Aberdeen in November 1883 December 1 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 On Light in Three Courses Delivered At Aberdeen in November 1883 December 1
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phenomena seem to indicate that the bright lines belong to portions of intensely heated gas which have rushed up from the interior of the sun, from what depth of course there is no way of saying, while the spots are due to the absorption of light from below by cooler, though still intensely hot, gases which are commonly descending.
Before I conclude I must briefly refer to a sin- gularly elegant method which M. Cornu has devised for distinguishing between those dark lines of the' solar spectrum... which owe their origin to the sun and those which are due to absorption of the sun's light by the atmosphere of the earth. He places a lens mounted so as to admit of a rapid lateral oscillating motion in front of the slit of the spectroscope, which for this purpose must be one of very high dispersion, at such a distance as to form an image of the sun on the slit. The amount of lateral motion is such as to bring the two lateral limbs of the sun, near the edges, so as to fall on the slit alternately.
What to read after On Light in Three Courses Delivered At Aberdeen in November 1883 December 1?
You can find similar books in the "Read Also" column, or choose other free books by George Gabriel Stokes to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
phenomena seem to indicate that the bright lines belong to portions of intensely heated gas which have rushed up from the interior of the sun, from what depth of course there is no way of saying, while the spots are due to the absorption of light from below by cooler, though still intensely hot, gases which are commonly descending.
Before I conclude I must briefly refer to a sin- gularly elegant method which M. Cornu has devised for distinguishing between those dark lines of the' solar spectrum... which owe their origin to the sun and those which are due to absorption of the sun's light by the atmosphere of the earth. He places a lens mounted so as to admit of a rapid lateral oscillating motion in front of the slit of the spectroscope, which for this purpose must be one of very high dispersion, at such a distance as to form an image of the sun on the slit. The amount of lateral motion is such as to bring the two lateral limbs of the sun, near the edges, so as to fall on the slit alternately.
What to read after On Light in Three Courses Delivered At Aberdeen in November 1883 December 1?
You can find similar books in the "Read Also" column, or choose other free books by George Gabriel Stokes to read onlineMoreLess
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