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" ... that is by a quarter of an inch, subtended an angle at the prism of about half a degree, which is the sun's apparent diameter. But the length of the image was about ten inches and a quarter, and the length of the rectilinear sides about eight inches,... "
A Treatise on Geometrical Optics - Page 161
by Robert Alfred Herman - 1900 - 344 pages
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The Panorama of Science and Art: Embracing the Sciences of ..., Volume 1

James Smith - 1815 - 684 pages
...length was about 10j inches, and the length of its rectilinear sides about eight inches ; and ACB, the refracting angle of the prism, whereby so great a length was made, was 64 degrees. With a less angle, the length of the image was less, the breadth remaining the same. It is...
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Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and ..., Volume 15

1823 - 886 pages
...• and ACB, tbe refracting angle of the prism, by which, so great a length was made, was 64 degrees. With a less angle the length of the image was less, the breadth remaining the same. It is farther to be observed, that tbe rays went on in straight lines from the prism to the image,...
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A Manual of Natural and Experimental Philosophy: Being the ..., Volume 2

Charles Frederick Partington - 1828 - 468 pages
...about 2| inches, but its length was about KH inches, and the length of its rectilinear sides about 8 inches ; and the refracting angle of the prism, whereby so great a length was made, was 64 degrees. With a less angle, the length of the image was less, the breadth remaining the same. It is...
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The Penny Mechanic and Chemist: A Magazine of the Arts and Sciences, Volume 6

1841 - 488 pages
...of the image was abput ten inches and a quarter, and the length of the rectilinear sides about eight inches ; and the refracting angle of the prism, whereby so great a length was made, was C4°. With a less angle, the length of the image was less, the breadth remaining the same. It is farther...
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The British Cyclopaedia of the Arts, Sciences, History, Geography ...

1838 - 1014 pages
...length was about lo't inches, and the length of its rectilinear sides about eight inches ; and ACB, the refracting angle of the prism, whereby so great...the image was less, the breadth remaining the same. It is further to be observed that the rays went on in straight lines from the prism to the image, and...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1870 - 514 pages
...of the image was about ten inches and a quarter, and the length of the rectilinear sides about eight inches, and the refracting angle of the prism whereby...the image was less, the breadth remaining the same. If the prism was turned about its axis that way which made the rays emerge more obliquely out of the...
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Spectrum analysis, 6 lects

sir Henry Enfield Roscoe - 1869 - 396 pages
...of the image was about ten inches and a quarter, and the length of the rectilinear sides about eight inches, and the refracting angle of the prism whereby...was made, was 64°. With a less angle the length of tho image was less, the breadth remaining the same. If tho prism was turned about its axis that way...
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Spectrum analysis, 6 lects

sir Henry Enfield Roscoe - 1870 - 452 pages
...of the image was about ten inches and a quarter, and the length of the rectilinear sides about eight inches, and the refracting angle of the prism whereby...the image was less, the breadth remaining the same. If the prism was turned about its axis that way which made the rays emerge more obliquely out of the...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1873 - 542 pages
...of the image was about ten inches and a quarter, and the length of the rectilinear sides about eight inches, and the refracting angle of the prism whereby...the image was less, the breadth remaining the same. If the prism was turned about its axis that way which made the rays emerge more obliquely out of the...
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The Theory of Light

Thomas Preston - 1890 - 494 pages
...but the length of the image was about 10 J inches, and the length of the rectilinear sides about 8 inches, and the refracting angle of the prism, whereby so great a length was made, was 64 degrees. With a less angle the length of the image was less, the breadth remaining the same. If the...
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