pictures accompanying these mirrors are dis- torted to such an extent as to render the object un- recognizable until viewed in the mirror, which corrects Those parts nearest the mirror are enormously ex- the image. aggerated, while other parts are disproportionately By tracing the incident ray from… … shield. Two black covered books are placed upon one upon the persistence of vision. It consists of a paper box mounted on a pivot, and having near its upper end and arranged at an angle with each other, and a 1, CONVEX CYLINDRICAL MIRROR. 2, DISTORTED PICTURE TO BE third book is laid horizontally…
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