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 695
net, A. In another aperture in thecentre of the top a glass tube fits,provided at its upper extremitywith a micrometer. This consistsof two circular pieces : f?, which isfixed, is divided on the edge into360^, while on one ^, which is mov-able, there is a mark, ^, to indicateits rotation. D and E… … Fig. 644. the case there is a graduated scale, which indicates the angle of the needlert/5, and hence the torsion of the wire. When the mark c of the disc E is at zero of the scale D, the case is soarranged that the wire supporting the needle and the zero of the scale in thecase are in the magnetic…
Physics
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