The Physiology of Vision With Special Reference to Colour Blindness
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In our eReader you can find the full English version of the book. Read The Physiology of Vision With Special Reference to Colour Blindness Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Physiology of Vision With Special Reference to Colour Blindness
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The important fact in this experiment is that when the lines are fused with disparate points their position in space appears to be different ; one line appears to be raised above the other in the stereoscopic combination, and we have an appearance of stereoscopic relief. Wheatstone was of opinion not only that we can have single vision with disparate points, but that we can have double vision with corresponding points. This has been denied by many observers, but is still a subject of discussion.... He showed that if a thick vertical line be drawn on one sheet of paper and a thin vertical line with a thick line running diagonally across it on another sheet of paper (see Fig. 15) : when these are placed in the stereoscope the thick diagonal and vertical lines combine into one and a thin line is seen running vertically through it. The important point in this experiment is that the thick line appears to stand out from the paper. Spearman also holds the same opinion, which of late years has been steadily gaining ground.
What to read after The Physiology of Vision With Special Reference to Colour Blindness?
You can find similar books in the "Read Also" column, or choose other free books by Frederick William Edridge Green to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The important fact in this experiment is that when the lines are fused with disparate points their position in space appears to be different ; one line appears to be raised above the other in the stereoscopic combination, and we have an appearance of stereoscopic relief. Wheatstone was of opinion not only that we can have single vision with disparate points, but that we can have double vision with corresponding points. This has been denied by many observers, but is still a subject of discussion.... He showed that if a thick vertical line be drawn on one sheet of paper and a thin vertical line with a thick line running diagonally across it on another sheet of paper (see Fig. 15) : when these are placed in the stereoscope the thick diagonal and vertical lines combine into one and a thin line is seen running vertically through it. The important point in this experiment is that the thick line appears to stand out from the paper. Spearman also holds the same opinion, which of late years has been steadily gaining ground.
What to read after The Physiology of Vision With Special Reference to Colour Blindness?
You can find similar books in the "Read Also" column, or choose other free books by Frederick William Edridge Green to read onlineMoreLess
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