Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
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Página 12
... more rapid undulations . These vibrations , inaudible to us , may possibly be perceived by some lower animals , as , for example , insects ; we can not tell . After a long interval , vibrations again appear 12 INTRODUCTORY .
... more rapid undulations . These vibrations , inaudible to us , may possibly be perceived by some lower animals , as , for example , insects ; we can not tell . After a long interval , vibrations again appear 12 INTRODUCTORY .
Página 13
Joseph LeConte. tell . After a long interval , vibrations again appear in consciousness as light . The vibrations which produce this sensation are so rapid - 399,000,000,000,000 in a sec- ond - that they can be conveyed only by the ...
Joseph LeConte. tell . After a long interval , vibrations again appear in consciousness as light . The vibrations which produce this sensation are so rapid - 399,000,000,000,000 in a sec- ond - that they can be conveyed only by the ...
Página 54
... appear first beneath the base of the brain as the optic roots , rr ' , Fig . 20 , converge , unite , and partially cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a little to the ...
... appear first beneath the base of the brain as the optic roots , rr ' , Fig . 20 , converge , unite , and partially cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a little to the ...
Página 63
... if mixed with yellow , as * " " Nature , " 20 , pp . 477 , 611 , 637 ( 1879 ) ; " Contemporary Review , " May , 1880 . are most reds , it appears yellow mixed with gray STRUCTURE OF THE RETINA . 63 Hall, 61; color-blindness, 62; theory of,
... if mixed with yellow , as * " " Nature , " 20 , pp . 477 , 611 , 637 ( 1879 ) ; " Contemporary Review , " May , 1880 . are most reds , it appears yellow mixed with gray STRUCTURE OF THE RETINA . 63 Hall, 61; color-blindness, 62; theory of,
Página 64
Joseph LeConte. are most reds , it appears yellow mixed with gray , or a kind of brown ; or if mixed with blue ( purple ) , it ap- pears as blue mixed with gray , or slate - blue . A pure green appears simple gray ; a yellow - green ...
Joseph LeConte. are most reds , it appears yellow mixed with gray , or a kind of brown ; or if mixed with blue ( purple ) , it ap- pears as blue mixed with gray , or slate - blue . A pure green appears simple gray ; a yellow - green ...
Términos y frases comunes
angle animals axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle Cloth colors combined images cones corresponding points cross depth of space distance distant objects distinct divergence double images evident exactly Experiment external images farther fibers field of view gaze Helmholtz heteronymous homonymous horizontal horopter horopteric line identical points Illustrations impression inches inclination interocular space inverted jects left eye left-eye image lens light line of sight look median line monocular motion muscles naked eyes natural nearer nose oblique observer ocular optic axes optic centers optic chiasm optic convergence optic nerve outward parallel perceived perception perfect image perfectly point of sight position projection ray-lines rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single shut side Sociology stereoscope surface T. H. HUXLEY tion torsion vertical meridian vibrations visual lines visual result vols
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