Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311ÆäÀÌÁö |
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6 ÆäÀÌÁö
... respective vibrations for the rays at the ends of the spectrum are as follows . For the extreme red , 395 billions of vibrations per second . For the extreme violet , 763 billions of vibrations per second . The rays of light which give ...
... respective vibrations for the rays at the ends of the spectrum are as follows . For the extreme red , 395 billions of vibrations per second . For the extreme violet , 763 billions of vibrations per second . The rays of light which give ...
35 ÆäÀÌÁö
... respectively , the ratio of the wave - lengths being 1-190 . These two colours should meet between the blue and the green . The next step will be the formation of another point of difference at the centre of the series ; that is to say ...
... respectively , the ratio of the wave - lengths being 1-190 . These two colours should meet between the blue and the green . The next step will be the formation of another point of difference at the centre of the series ; that is to say ...
86 ÆäÀÌÁö
... respectively every portion of the visual field . The complementary is not so vivid as that produced by a fixed gaze . 2. If we look intently at a coloured object with the left eye , the right being bandaged , and then suddenly close the ...
... respectively every portion of the visual field . The complementary is not so vivid as that produced by a fixed gaze . 2. If we look intently at a coloured object with the left eye , the right being bandaged , and then suddenly close the ...
116 ÆäÀÌÁö
... respectively . There is no reason why they should not do this as long as they do not obtain any aid from the relative luminosity of the colours . For this reason a large number — about 150 - of coloured wools should be given to the ...
... respectively . There is no reason why they should not do this as long as they do not obtain any aid from the relative luminosity of the colours . For this reason a large number — about 150 - of coloured wools should be given to the ...
173 ÆäÀÌÁö
... respectively , red . He called the ribbed glass , first time , white and green ; second time , white and red . The white was the flame . He called No. 11 , in combination with 3 and 4 re- spectively , purple . He called the combination ...
... respectively , red . He called the ribbed glass , first time , white and green ; second time , white and red . The white was the flame . He called No. 11 , in combination with 3 and 4 re- spectively , purple . He called the combination ...
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absolute psycho-physical units after-image ANNA BLACKWELL blue-green bright brown candidate centre colour-blind person colour-perception coloured glass complementary colours contrast correctly crimson dark daylight defect definite colours Demy 8vo distinguish English Essays examination Fcap Fifth Edition four-unit Fourth Edition Frontispiece gaslight gray greenish Holmgren's Illustrations India junction large number LL.B LL.D luminosity Maps match mistakes modified unit neutral band neutral glasses normal-sighted person obtained olive-green orange painted physical series physical units Pilotage pink Plates Pocket Test points of difference Portrait Post 8vo Prof psycho-physical perception psycho-physical series psycho-physical units pure green purple red and green red end red rays retina rose Royal 8vo Sanskrit scotoma Second Edition seen shade simultaneous contrast Small crown 8vo spectroscope spectrum standard red test for colour-blindness theory Third Edition three-unit tion Translated Trinity House two-unit colour-blind violet violet end visual purple vols wools yellow and blue yellow-brown yellow-green Young-Helmholtz theory