 In a very dark chamber at a round hole about one third part of an inch broad made in the shut of a window I placed a glass prism, whereby the beam of the sun's light which came in at that hole might be refracted upwards towards the opposite wall of the...  A Treatise on Geometrical Optics - Page 160by Robert Alfred Herman - 1900 - 344 pagesFull view - About this book
 | Isaac Newton - 1730 - 403 pages
...Hole, about one third Part xlf an Inch broad, made in the Shut of a ^inciowi I placed aGlafsPrifm, whereby the Beam of the Sun's Light, which came in...at that Hole, might be refracted upwards toward the oppoifteWall C 3 : of of the Chamber, and there form a colour'd Image of the Sim. The Axis of the PrHm... | |
 | George Gregory - 1798 - 630 pages
...made in the {hut of a window, I placed a glafs prifm ABC, whereby the beam of the fun's light, SF, which came in at that hole, might be refracted upwards, toward the oppofite wall of the chamber, and there form a coloured image of the fun, reprefented at P T. The axis... | |
 | 1816 - 778 pages
...made in the ft; ut of a window, I placed a glafs prifm ABC, whereby the beam cf the fun's light, SF, which came in at that hole, might be refracted upwards, toward the oppofite wall of the chamber, arid there form a co'oured image of the fun, rcprciVrted at PT. The axis... | |
 | William Jillard Hort - 1822 - 346 pages
...darkened chamber, at a round hole, about one third of an inch broad, made in the shutter of a window, he placed a glass prism, whereby the beam of the sun's...which came in at that hole, might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. He turned the... | |
 | 1841 - 488 pages
...dark chamber, at a round hole, one-third of an inch in diameter, made in the shutter of a window, he placed a glass prism, whereby the beam of the sun's light, which came in at the hole, might be refracted upwards towards the opposite wall of the chamber, and there form a coloured... | |
 | sir Henry Enfield Roscoe - 1869 - 396 pages
...refrangible. THE PROOF BY EXPERIMENTS. Kjf>er. 3. — In a very dark chamber at a round hole about one third part of an inch broad made in the shut of a window...which came in at that hole might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. The axis of the... | |
 | Henry Enfield Roscoe - 1870 - 514 pages
...refrangible. THE PROOF BY EXPERIMENTS. Exper. 3. — In a very dark chamber at a round hole about one third part of an inch broad made in the shut of a window...which came in at that hole might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. The axis of the... | |
 | Henry Enfield Roscoe - 1873 - 542 pages
...refrangible. THE PROOF BY EXPERIMENTS. Exper. 3.—In a very dark chamber at a round hole about one third part of an inch broad made in the shut of a window...which came in at that hole might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. The axis of the... | |
 | Thomas Preston - 1890 - 494 pages
...In a very dark chamber, at a round hole about one-third part of an inch broad, made in the shutter of a window, I placed a glass prism, whereby the beam...which came in at that hole, might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. The axis of the... | |
 | Thomas Preston - 1895 - 612 pages
...the sun consists of rays differently refrangible " (Newton, Optick*, book i. prop. ii. theorem 2). In a very dark chamber, at a round hole about one-third...which came in at that hole, might be refracted upwards towards the opposite wall of the chamber, and there form a coloured image of the sun. The axis of the... | |
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