A Treatise on the Kaleidoscope1858 |
From inside the book
Արդյունքներ 86–ի 1-ից 5-ը:
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... REFLECTORS , 51 VII . ON THE CONSTRUCTION AND USE OF THE SIMPLE KALEIDOSCOPE , 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 ...
... REFLECTORS , 51 VII . ON THE CONSTRUCTION AND USE OF THE SIMPLE KALEIDOSCOPE , 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 ...
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... Reflectors , 94 XII . - ON THE CONSTRUCTION AND USE OF ANNULAR AND PARALLEL KALEIDOSCOPES , · 1. Mr. Dollond's ... reflectors at angles of 60 ° , · 109 4. On combinations of three reflectors at angles of 90 ° , 45 ° , and 45 ° , 111 ...
... Reflectors , 94 XII . - ON THE CONSTRUCTION AND USE OF ANNULAR AND PARALLEL KALEIDOSCOPES , · 1. Mr. Dollond's ... reflectors at angles of 60 ° , · 109 4. On combinations of three reflectors at angles of 90 ° , 45 ° , and 45 ° , 111 ...
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... reflectors . From the approximation to perfect symmetry which the figure now displayed , compared with the great ... reflectors , the position of the object , and the position of the eye , were concerned . I found , that in order to ...
... reflectors . From the approximation to perfect symmetry which the figure now displayed , compared with the great ... reflectors , the position of the object , and the position of the eye , were concerned . I found , that in order to ...
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... 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 Edinburgh , who were much struck with the beauty of its effects . In this case ...
... 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 Edinburgh , who were much struck with the beauty of its effects . In this case ...
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... reflectors , or held close to them , and consequently to objects , or groups of objects , whose magnitudes were less than its triangular aperture . The next , and by far the most important step of the invention , was to remove this ...
... reflectors , or held close to them , and consequently to objects , or groups of objects , whose magnitudes were less than its triangular aperture . The next , and by far the most important step of the invention , was to remove this ...
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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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Էջ 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.