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 793
Fig- 737- … in diameter. Their distance can be varied, and at the same time measured,by means of a micrometric screw, r. The two opposite electricities arriveby wires ;;? and ;/, and the sparks strike at the principal focus of a condensinglens placed in the collimator C, so that the rays which fall on the…
Physics
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