 Wollaston has shewn, may be produced, by looking along the side of a red-hot poker at a word or object ten or twelve feet distant. At a distance less than three-eighths of an inch from the line of the poker, an inverted image was seen; and within and...  Parlour Magic - 16 페이지1838 - 183 페이지전체보기 - 도서 정보
 | 1829 - 500 페이지
...bottle which contains the fluids, an inverted image wiH be seen. The same effect Dr. Wollaston has shown may be produced by looking along the side of a red-hot...seen, and within and without that an erect image. The method employed by Dr. Brewstert to illustrate these phenomena con• MM Jurine and Sorct observed... | |
 | Thomas Curtis - 1829 - 824 페이지
...an inverted image will be seen. The same effect Dr. Wollaston has shown may be produced by loo'dng along the side of a red-hot poker at a word or object...seen, and within and without that an erect image. 334. The method employed by Dr. Brewster to illustra'e these phenomena consists in holding a heated... | |
 | 1829 - 522 페이지
...twelve feet distant. At a distance less than three-eighths of an inch from the line of the pok.-r, an inverted image was seen, and within and without that an erect image. The method employed by Dr. Brewstert to illustrate these phenomena con• MM Jurine and Sorec observed... | |
 | Thomas Dick - 1845 - 644 페이지
...hot poker at a word or object ten or twelve feet distant ; and at a distance less than three eights of an inch from the line of the poker, an inverted image was seen, and within and without that image, an erect image, in consequence of the change produced, by the heat of the poker, in the density... | |
 | Thomas Dick - 1848 - 408 페이지
...manner: He looked along the side of a red-hot poker at a word or object ten or twelve feet distant ; and at a distance less than three-eighths of an inch from...inverted image was seen, and within and without that image, an erect image, in consequence of the change produced, by the heat of the poker, in the density... | |
 | Thomas Dick - 1850 - 586 페이지
...: He looked along the side of a red-hot poker at a word or object ten or twelve feet distant ; and at a distance less than three-eighths of an inch from...inverted image was seen, and within and without that image, an erect image, in consequence of the change produced, by the heat of the poker, in the density... | |
 | Henry William Heaton - 1864 - 140 페이지
...the side of a red-hot poker at some printed letters, ten or twelve feet distant ; at a distance of three-eighths of an inch from the line of the poker, an inverted image was seen. I feel a certain amount of diffidence in making any positive assertions as to the effect of various... | |
 | 1875 - 708 페이지
...held behind the tumblers, its nverted image may be seen. The same effect, Dr. Wollastoo has shown, may be produced by looking along the side of a red-hot...through the water, the phenomena of the mirage may he seen in the finest manner. Or, look directly above the flame of a candle, or over the glass of a... | |
 | Adolphe Ganot - 1877 - 976 페이지
...a tranquil lake. The effect of the mirage may be illustrated artificially, as Dr. Wollaston showed, by looking along the side of a red-hot poker at a...seen, and within and without that an erect image. A more convenient arrangement than a red-hot poker is a flat box closed at the top and filled with... | |
 | Adolphe Ganot - 1881 - 658 페이지
...red-hot poker at a word or object ten or twelve feet distant. At a distance of less than thre;-eighths of an inch from the line of the poker, an inverted...seen, and within and without that an erect image. CHAPTER IV. EFFECTS OF REFRACTION THROUGH PRISMS AND THROUGH LENSES. 342. Media with plane parallel... | |
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