A Treatise on the Kaleidoscope1858 |
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... 59 VIII . - ON THE SELECTION OF OBJECTS FOr the KaleidO- SCOPE , AND ON THE MODE OF CONSTRUCTING THE ОВЈЕСТ - ВОХ , • IX . - ON THE ILLUMINATION OF TRANSPARENT OBJECTS IN THE KALEIDOSCOPE , · 67 76 CHAP . X. - ON THE CONSTRUCTION AND USE ...
... 59 VIII . - ON THE SELECTION OF OBJECTS FOr the KaleidO- SCOPE , AND ON THE MODE OF CONSTRUCTING THE ОВЈЕСТ - ВОХ , • IX . - ON THE ILLUMINATION OF TRANSPARENT OBJECTS IN THE KALEIDOSCOPE , · 67 76 CHAP . X. - ON THE CONSTRUCTION AND USE ...
Page 5
... constructed an instrument , in which I fixed permanently , across the ends of the reflectors , pieces of coloured glass , and other irregular objects ; and I showed the instrument in this state to some members of the Royal Society of ...
... constructed an instrument , in which I fixed permanently , across the ends of the reflectors , pieces of coloured glass , and other irregular objects ; and I showed the instrument in this state to some members of the Royal Society of ...
Page 7
... constructed upon scientific principles , and capable of giving anything like a correct idea of the power of the Kaleidoscope ; and of the millions who have witnessed its effects , there is perhaps not a hundred individuals who have any ...
... constructed upon scientific principles , and capable of giving anything like a correct idea of the power of the Kaleidoscope ; and of the millions who have witnessed its effects , there is perhaps not a hundred individuals who have any ...
Page 50
... constructed so as to give to an experienced and fastidious eye that high delight which it never fails to derive from the exhibition of forms perfectly symmetrical . From these observations it follows , that a picture pos- sessed of ...
... constructed so as to give to an experienced and fastidious eye that high delight which it never fails to derive from the exhibition of forms perfectly symmetrical . From these observations it follows , that a picture pos- sessed of ...
Page 59
... construct the Kaleidoscope in its most simple form , we must procure two reflectors , about five , six , seven , or eight inches long . These reflectors may be either rect- angular plates , or plates shaped like those represented in Fig ...
... construct the Kaleidoscope in its most simple form , we must procure two reflectors , about five , six , seven , or eight inches long . These reflectors may be either rect- angular plates , or plates shaped like those represented in Fig ...
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Common terms and phrases
A O E aliquot angle A O B angles of incidence angular aperture angular point aperture A O B apparent magnitude beauty brass rim broad milled Camera Obscura cell centre CHAPTER circle circular field coloured glass combination composed cone construction convex lens direct vision distance effects produced equal exhibited Fcap figure fixed focal length History images formed inches inclination instrument inverted image JOHN WILSON CROKER Kaleido Kaleidoscope last sector light luminous m n o p manner metallic motion move object-box object-plate objects placed obliquely observer optical pieces plane mirrors plates of glass polygon Portrait position Post 8vo preceding principles rays re-entering angles reflected images regular polygon ring round salient angles screw Second Edition seen by direct shown in Fig side speculum metal square stationary symmetrical picture Third Edition three reflectors tion triangle tube velocity Vols Woodcuts
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Page 1 - Medal, the reflectors were in some cases inclined to each other, and he had occasion to remark the circular arrangement of the images of a candle round a centre, or the multiplication of the sectors formed by the extremities of the glass plates. In repeating, at a subsequent period, the experiments of M. Biot on the action of fluids upon light, Dr B.