Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 594
S FOR FORMING lICTURi:S OF OBJECTS. 602. Camera obacura.—The camera obsciira (dark chamber) is, as itsname implies, a closed space impervious to light. The principle of this apparatus is illus-trated by fig. 566.The rays proceed-ing from an externalobject AI), and en-tering by the aper-ture O, form… … Fig- 565.
Physics
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