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The Blind Spot

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-500

2025-12-23

558

At the inner side of each eye where the optic nerve enters there is a blind spot. This can be readily proved as follows: Close the left eye and look steadily at the cross below with the right. A position can be found in which, while you look steadily at the cross,

the circle will disappear. When this position is found the circle may be brought into view by moving the book either nearer to the eye or farther away.