Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York : H. Holt and company · leaf 103
83 ASTRONOMY. the same as that of {n—1) parts on the divided limb M Nor the reverse. The first stroke a is the zero of the vernier, and thereading is always determined by the position of this zeroor pointer. If this has revolved past exactly twenty di-visions of the circle, then the angle to be… … Fig. 34.—the vernikb. Call the angular value of one division on the vernier d; fi 1 1 (n — l)d = n-d, ord = -d, and d—d^ -d ; d — d is called the least count of the vtriiier which is oneji part of a circle division. If the zero a does not fall exactly on a division on thecircle, but is at some…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
