A Treatise on the Kaleidoscope1858 |
From inside the book
Արդյունքներ 23–ի 1-ից 5-ը:
Էջ 7
... applied to me for an affidavit , by which he was enabled to contradict it in Court , and remove any unfavourable impression it might have made upon the jury . to apply it to the numerous branches of the useful HISTORY OF THE KALEIDOSCOPE .
... applied to me for an affidavit , by which he was enabled to contradict it in Court , and remove any unfavourable impression it might have made upon the jury . to apply it to the numerous branches of the useful HISTORY OF THE KALEIDOSCOPE .
Էջ 30
... as When the eye is applied to the end of the mirrors ( or at E , Fig . 1 ) , the fixed object x , Fig . 12 , seen by direct a centre . vision will , of course , be stationary , while 30 CHAP . III . EFFECTS PRODUCED BY THE MOTION OF.
... as When the eye is applied to the end of the mirrors ( or at E , Fig . 1 ) , the fixed object x , Fig . 12 , seen by direct a centre . vision will , of course , be stationary , while 30 CHAP . III . EFFECTS PRODUCED BY THE MOTION OF.
Էջ 61
... applied to the instrument . In using transparent objects the cell or box which contains them may be screwed into the end of the tube , so as to reach the ends of the reflectors , if they happen to terminate within the tube ; but an ...
... applied to the instrument . In using transparent objects the cell or box which contains them may be screwed into the end of the tube , so as to reach the ends of the reflectors , if they happen to terminate within the tube ; but an ...
Էջ 62
... applying them to the end of the reflectors . The first and most simple method consists in bringing the tube about half an inch beyond the ends of the reflectors . A circular piece of thin plane glass of the same diameter as the tube ...
... applying them to the end of the reflectors . The first and most simple method consists in bringing the tube about half an inch beyond the ends of the reflectors . A circular piece of thin plane glass of the same diameter as the tube ...
Էջ 63
... applied to the numerous objects which are perpetually presenting themselves to our notice . These evils can be FIG . 22 . a removed only by adopting the construction shown in Fig . 22 , in which the reflectors reach the very end of the ...
... applied to the numerous objects which are perpetually presenting themselves to our notice . These evils can be FIG . 22 . a removed only by adopting the construction shown in Fig . 22 , in which the reflectors reach the very end of the ...
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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.