 ... stripe. So you see that the primary direction of the visual line is completely fixed, and that the eye, which wants only to glance for an instant at a peripheral point of the drawing, and then goes back again to the centre, is not fatigued. This method...  Proceedings of the Royal Society of London - Сторінка 196автори: Royal Society (Great Britain) - 1864Повний перегляд - Докладніше про цю книгу
 | Royal Society (Great Britain) - 1864 - 636 стор.
...direction of the visual line is completely 192 Prof. Helmholtz— Normal Motions of the [April 14, fixed, and that the eye, which wants only to glance...movements the horizontal meridian. Now you need only bring either your own head into an inclined position, or the diagram with the lines, and repeat the... | |
 | 1869 - 488 стор.
...any axis at right angles to the optic axis, but does not rotate about the optic axis. Again he states that "vertical and horizontal lines keep their vertical...its primary direction vertically or horizontally." This law had been previously stated by Listing but without proof ; Helmholtz claims to have established... | |
 | Hermann von Helmholtz - 1895 - 708 стор.
...centre of the coloured stripe. So you see that the primary direction of the visual line is completely fixed, and that the eye, which wants only to glance...movements the horizontal meridian. Now you need only bring either your own head into an inclined position, or the diagram with the lines, and repeat the... | |
 | Hermann von Helmholtz - 1895 - 712 стор.
...primary direction of the visual üne is completely fixed, and that the eye, which wants only to 192 glance for an instant at a peripheral point of the...with the law which I have enunciated. That is to say, duriiig vertical movements of the eye the vertical meridian plane keeps its vertical position, and... | |
 | 1865 - 750 стор.
...centre of the colored stripe. So you see that the primary direction of the visual line is completely fixed, and that the eye, which wants only to glance...movements the horizontal meridian. Now you need only bring cither your own head into an inclined position, or the diagram with the lines, and repeat the... | |
 | 1865 - 552 стор.
...stripe. So you sec that the primary direction of the visual line is completely fixed, and that tha eye, which wants only to glance for an instant at...vertical meridian plane keeps its vertical position, aud daring horizontal movements the horizontal meridian. Now you need only bring either your own head... | |
 | 1869 - 1022 стор.
...axis at right angles to the optic axis, but does not rotate abuut the optic axis. Again, he states that " vertical and horizontal lines keep their vertical...its primary direction vertically or horizontally." This law had been previously stated by Listing, but without proof; Helmholtz claims to have established... | |
 | 1869 - 946 стор.
...any axis at right angles to the optic axis, but does not rotate about the optic axis. Again he states that " vertical and horizontal lines keep their vertical...its primary direction vertically or horizontally." This law had been previously stated by Listing but without proof; Helmholtz claims to have established... | |
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