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 684
•■■;;• fjS. Kig. 639. the slit in the prism, the hair of the sight-vanc, antl the distant object areseen to be in the same line ; looking through the eyehole, the angle whichthe needle makes is then noted ; a similar observation is made with anotherobject, and thus the angle between them, or their…
Physics
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