 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; and the refracting Angle of...  Spectrum analysis, 6 lects - Page 33by sir Henry Enfield Roscoe - 1870Full view - About this book
 | Isaac Newton - 1730 - 403 pages
...by a quarter of an Inch, fubtended an Angle at the Prifm of about half a Degree, which is the Sun's apparent Diameter. But the Length of the Image was...about eight Inches ; and the refracting Angle of the Prifm, whereby fo great a Length was made, was 64 degrees. With a Ms Angle the Length of the Image... | |
 | James Wood - 1801 - 270 pages
...by a quarter of an inch, fubtended an angle at the prifm of about half a degree, which is the fun's apparent diameter. But the length of the image was...inches and a quarter, and the length of the rectilinear fides about eight inches; ancj • • Left. Opt. PI Prop. XXVr ', and the refracting angle of the... | |
 | 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... | |
 | 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,... | |
 | 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... | |
 | 1841 - 488 pages
...of about half-adegree, which is the sun's apparent diameter. But the length of the image was abput ten inches and a quarter, and the length of the rectilinear...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... | |
 | 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... | |
 | 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... | |
 | Sir William Augustus Tilden - 1899 - 284 pages
...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...the image was less, the breadth remaining the same. . . . Now, the different magnitude of the hole in the window-shut and different thickness of the prism... | |
 | Sir William Augustus Tilden - 1899 - 296 pages
...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...a less angle the length of the image was less, the breadtl1 remaining the same. . . . Now, the different magnitude of the hole in the window-shut and... | |
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