The Five Senses of ManH. S. King, 1876 - 304 стор. |
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Сторінка 101
... violet . The colours in the spectrum are not sharply sepa- rated , but pass gradually into each other . We can dis- tinguish as quite pure colours , red , yellow , green , blue , violet , each of which produces a sensation entirely ...
... violet . The colours in the spectrum are not sharply sepa- rated , but pass gradually into each other . We can dis- tinguish as quite pure colours , red , yellow , green , blue , violet , each of which produces a sensation entirely ...
Сторінка 102
... violet . Since the different kinds of light are transmitted with equal velocity , violet makes more vibrations in the same length of time than red light ; the former about 667 billions , the latter 456 billions in a second . We learn ...
... violet . Since the different kinds of light are transmitted with equal velocity , violet makes more vibrations in the same length of time than red light ; the former about 667 billions , the latter 456 billions in a second . We learn ...
Сторінка 103
... violet . It has , however , been shown by Helmholtz , that , under certain conditions , we can also perceive the ultra - violet end of the spectrum with the eye . If we separate the ultra - violet part of a spectrum , thrown on a screen ...
... violet . It has , however , been shown by Helmholtz , that , under certain conditions , we can also perceive the ultra - violet end of the spectrum with the eye . If we separate the ultra - violet part of a spectrum , thrown on a screen ...
Сторінка 108
... violet are complementary colours . Now if we look for these complementary colours in the spectrum , we find that two complementary colours always lie a certai ance apart . Two adjoining colours can neve two ends of the s tion of which ...
... violet are complementary colours . Now if we look for these complementary colours in the spectrum , we find that two complementary colours always lie a certai ance apart . Two adjoining colours can neve two ends of the s tion of which ...
Сторінка 109
... violet , to produce the sensation of white light . These three colours , red , green and violet , are now received as primary colours , because they are the only three pure colours in the spectrum which , when combined , produce a ...
... violet , to produce the sensation of white light . These three colours , red , green and violet , are now received as primary colours , because they are the only three pure colours in the spectrum which , when combined , produce a ...
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Загальні терміни та фрази
action apparatus appear auditory nerve basilar membrane blue body brain called camera obscura cause centimetres cochlea complementary colours consists convex lens distance distinct distinguish double impression ear-bones edge Ernst Heinrich Weber Eustachian tube exactly excited experience fact fenestra ovalis field of vision figure fingers fixed follows fundamental tone greater green hand harmonics Helmholtz illusion imagine incidental images instance irritation layer look manner means motion move muscles number of vibrations observed octave optic nerve outer passes peculiar perceive a double perception phenomena picture position primary colours produced rays of light recognise refraction retina seen sensation of light sense of locality sense of touch sensitive to red sensory circle sensory nerves sensory organs separate points side simultaneously single nerve-fibre skin sound sound-waves spectrum stereoscopic string surface tactile takes place terminal boundaries terminal limits tion tube tuning-fork tympanic cavity tympanic membrane violet vitreous humour whilst
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