A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 269
ult. If we press on one of our eyes, so as to incline it towards an ob-ject at a different angle from the other, we see two images. Drunken menoften see double, because they lose control of the muscles of the eye, and donot direct both eyes towards a given object at the same angle. 695. Visual… … perform Its functions, what is the consequence ? 693. What kind of an image istermed on the retina, and why? Since an inverted image is formed on the retina,why do we see objects in an erect position? 694. Since we hare two eyes, why dowe not see two images of every object? How may we make two…
Physics
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