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" Now the different Magnitude of the hole in the Window-shut, and different thickness of the Prism where the Rays passed through it, and different inclinations of the Prism to the Horizon, made no sensible changes in the length of the Image. Neither did... "
Spectrum analysis, 6 lects - Page 37
by sir Henry Enfield Roscoe - 1873
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A general and elementary view of the undulatory theory, as applied to the ...

Baden Powell - 1841 - 210 pages
...not make " any change in the length of the image," (Spectrum,) he adds the remarkable assertion, " neither did the different matter of the prisms make...of the experiment according to the quantity of the refraction"—(p. 25.) This last expression might seem ambiguous, but we find him on another occasion...
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Spectrum Analysis -- Six Lectures

Henry E. Roscoe - 1869 - 372 pages
...same distance of 18^ feet was also about 10 inches, or 10 J. Beyond these measures for about J or J of an inch at either end of the spectrum the light...refracted, Newton proceeds.) This image or spectrum PT was coloured, being red at its least refracted end T, and violet at its most refracted end p, and...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1873 - 552 pages
...be a little tinged with red and violet, but so very faintly, that I suspected that tincture mi<rht either wholly or in great measure arise from some...refracted, Newton proceeds.] This image or spectrum PT was coloured, being red at its least refracted end T, and violet at its' most refracted end r, and...
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The Principles of Science: Book IV. Inductive investigation. Book V ...

William Stanley Jevons - 1874 - 524 pages
...spectrum, observed and proved the indifference of many circumstances by actual trial. He says 1 ': ' Now the different magnitude of the hole in the window-shut,...experiment according to the quantity of the refraction.' But in the latter statement, as I shall afterwards remark (vol. ii. p. 42), Newton assumed an indifference...
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The Principles of Science: A Treatise on Logic and Scientific Method

William Stanley Jevons - 1877 - 844 pages
...the prism to the horizon, made no sensible changes in the length of the 1 Opticlcs, 3rd. ed. p. 25. image. Neither did the different matter of the prisms...experiment according to the quantity of the refraction." But in the latter statement, as I shall afterwards remark (p. 432), Newton assumed an indifference...
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The Principles of Science: A Treatise on Logic and Scientific Method

William Stanley Jevons - 1887 - 896 pages
...the spectrum, ascertained the indifference of many circumstances by actual trial. He says : 1 " No* the different magnitude of the hole in the window-shut,...experiment according to the quantity of the refraction." But in the latter statement, as I shall afterwards remark (p. 432), Newton assumed an indifference...
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The Theory of Light

Thomas Preston - 1890 - 465 pages
...polished plates of glass, cemented together in the shape of a prism and filled with water, there is a like success of the experiment according to the quantity of the refraction. This image of the spectrum was coloured, being red at its least refracted end and violet at its most...
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Scientific Method: Its Philosophy and Its Practice

Frederic William Westaway - 1912 - 474 pages
...of varying the circumstances. Newton says,2 "The different magnitude of the hole in the window shut, and different thickness of the prism where the rays...experiment according to the quantity of the refraction." Yet even Newton overlooked one important point. — Throughout his researches on the spectrum, he was...
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Wrong for the Right Reasons

Jed Z. Buchwald, A. Franklin - 2005 - 248 pages
...all in favor of unequal refrangibility. Varying any of these factors, such as the size of the hole, made no sensible changes in the length of the Image....of the Experiment according to the quantity of the Refraction.58 This is a very strong claim, nearly equivalent to Experiment 8, for it asserts that for...
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Opticks: Or a Treatise of the Reflections, Refractions, Inflections and ...

Isaac Newton - 2007 - 416 pages
...the Prism where the Rays passed through it, and different inclinations of the Prism to the Hori2on, made no sensible changes in the length of the Image....Experiment according to the quantity of the Refraction. It is farther to be observed, that the Rays went on in right Lines from the Prism to the Image, and...
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