A Treatise on the Kaleidoscope1858 |
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... MOTION OF THE OBJECT AND THE MIRRORS , 26 IV . ON THE EFFECTS PRODUCED UPON THE SYMMETRY OF THE PICTURE BY VARYING THE POSITION OF THE EYE , 37 · V. - ON THE EFFECTS PRODUCED UPON THE SYMMETRY OF THE PICTURE BY VARYING THE POSITION OF ...
... MOTION OF THE OBJECT AND THE MIRRORS , 26 IV . ON THE EFFECTS PRODUCED UPON THE SYMMETRY OF THE PICTURE BY VARYING THE POSITION OF THE EYE , 37 · V. - ON THE EFFECTS PRODUCED UPON THE SYMMETRY OF THE PICTURE BY VARYING THE POSITION OF ...
Page 5
... motion to objects , such as pieces of coloured glass , & c . , which were either fixed or placed loosely in a cell at the end of the instrument . When this idea was carried into execution , and the reflectors placed in a tube , and ...
... motion to objects , such as pieces of coloured glass , & c . , which were either fixed or placed loosely in a cell at the end of the instrument . When this idea was carried into execution , and the reflectors placed in a tube , and ...
Page 25
... , will form a re - entering angle towards o , and when it is less than A O B , the same lines will form a salient angle towards o . CHAPTER III . ON THE EFFECTS PRODUCED BY THE MOTION CHAP . II . PRINCIPLES OF THE KALEIDOSCOPE . 25.
... , will form a re - entering angle towards o , and when it is less than A O B , the same lines will form a salient angle towards o . CHAPTER III . ON THE EFFECTS PRODUCED BY THE MOTION CHAP . II . PRINCIPLES OF THE KALEIDOSCOPE . 25.
Page 26
... motion . Let us , first , consider the effects produced by the motion of the object when the mirrors are at rest . FIG . 9 . P E If the object moves from x to o , Fig . 9 , in the direction of the radius , all the images will likewise ...
... motion . Let us , first , consider the effects produced by the motion of the object when the mirrors are at rest . FIG . 9 . P E If the object moves from x to o , Fig . 9 , in the direction of the radius , all the images will likewise ...
Page 27
... motion of the object also move outwards in the is from o to x , the images will direction of the radii , and the pattern will appear to de- velop itself from the centre o , and to be lost or absorbed at the circumference of the luminous ...
... motion of the object also move outwards in the is from o to x , the images will direction of the radii , and the pattern will appear to de- velop itself from the centre o , and to be lost or absorbed at the circumference of the luminous ...
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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.