 | 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... | |
 | James Smith - 1815 - 684 pages
...made in the shutter of a window, I placed a glass prism, ABC, whereby the beam of the sun's light, SF, which came in at that hole, might be refracted upwards,...the opposite wall of the chamber, and there form a coloured image of the sun, represented at FT. The axis of the prism (that is, the line passing through... | |
 | 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... | |
 | 1823 - 886 pages
...the shutter of a window, fig. i. I placed a glass prism ABC, whereby the beam of the Min's light, SF, which came in at that hole, might be refracted upwards,...the opposite wall of the chamber, and there form a coloured image of the sun, represented at PT. The axis of the prism was, in this and the following... | |
 | Charles Frederick Partington - 1828 - 468 pages
...experiment, with reference to an engraved figure. " In a very dark chamber, at a round hole B, about onethird of an inch broad, made in • the shut of a window, I placed a glass prism ACE, whereby the beam of the sun's light BG, which came in at that hole, might be refracted upwards,... | |
 | Thomas Curtis - 1829 - 798 pages
...his master, if he has acted better. Collier. 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. Newton. Lucullus, with a great fleet, »hut up Mithridates in Pitany. Arlmthuot. SHUTER (Edward), an... | |
 | 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
...differently 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...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
...differently 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...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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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 toward the opposite Wall of the... 
