A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 604
etched (Exp. 65). For ordi-nary purposes, neither the micrometer nor the ver-nier is required. The shaft is first adjusted by the eyeso as to be as nearly perpendicular as possible, hymeans of the levelling-screws (h, i, and l) at the baseof the instrument, then the telescope is made hori-zontal… … Fio. 286. 574 INSTRUMENTS OF PRECISION. [IT 263. top of the shaft is to be inclined slightly in this di-rection. After a series of trials the axis may in thisway be made perfectly vertical. The object to be measured is to be set up with theaid of a plumb-line, beside a vertical scale, so as tobe at…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
