Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 100
d not the object. This bending or changing ofthe path of the light rays is called refraction.One of the most commonly observed examples ofrefraction is the apparent bending of an oar atthe point where it enters the water. If a coin is placed in a glass of water so thatit may be viewed obliquely,… … ONE COIN APPEARS AS TWO. kind than those of refraction, for upon them arebased most optical instruments, including the tele-scope, microscope, camera, and eye-glasses. Re-fraction applies also to the structure of the eye.It will be not only instructive but entertainingto perform the experiments…
Children's literature
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