Editing 1080: Visual Field
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This comic shows a number of vision related facts, arranged in a way that they all fit inside your {{w|field of vision}} (the conic area in which you can see at any given time). You're supposed to look at the center of the image while standing about a foot away from the screen (although obviously you can't read the text on the image while staring at the center). | This comic shows a number of vision related facts, arranged in a way that they all fit inside your {{w|field of vision}} (the conic area in which you can see at any given time). You're supposed to look at the center of the image while standing about a foot away from the screen (although obviously you can't read the text on the image while staring at the center). | ||
β | Firstly, there's detail. The eye always sees objects closer to the | + | Firstly, there's detail. The eye always sees objects closer to the eye with more detail, which [[Randall]] illustrates with progressively smaller images, which are seen with the same level of detail (remember that you're supposed to be looking at the center of the image). This is because the {{w|retina}} is denser near the {{w|fovea}}, in the center. |
Next, there's the topic of {{w|night vision}}. The color-seeing {{w|cone cells}} don't work so well in the dark, whereas the black-and-white-seeing {{w|rod cells}} do. The rod cells can see shapes well, whereas the cone cells see detail (such as change in color), which Randall uses to explain why we can't read at night. | Next, there's the topic of {{w|night vision}}. The color-seeing {{w|cone cells}} don't work so well in the dark, whereas the black-and-white-seeing {{w|rod cells}} do. The rod cells can see shapes well, whereas the cone cells see detail (such as change in color), which Randall uses to explain why we can't read at night. |