फ्रांसीसी गणितज्ञ जिसने वर्नियर स्केल (1580-1637 (1580-1637

Noun:

वर्नियर,

verniers's Usage Examples:

A collar is provided, which when tightened on the vertical axis, otherwise free to move, holds it rigidly in position with respect to the plate PP. To this collar is attached a slow-motion screw, working against a reaction spring, by which the plate rr can be rotated through a small arc. The upper plate carrying two, three .or four verniers vv is attached to a vertical coned pillar passing through the centre of the larger pillar and rotating in it; this plate can be clamped to the lower plate by means of the screw C, and can be rotated with respect to it by the slow-motion screw d.

THEODOLITE,' a surveying instrument consisting of two graduated circles placed at right angles to each other, for the measurement of horizontal and vertical angles, a telescope, which turns on axes mounted centrically to the circles, and an alidade for each circle, which carries two or more verniers.

The verniers having been read, the cross-arm is rotated so as to deflect the needle a in the opposite direction, and a new setting is taken.

from the mirror magnet and to the east of the latter, and the whole instrument is turned till the centre division of the scale B coincides with the cross-wire of the telescope, when the readings of the verniers on the azimuth circle are noted.

Hence if the readings of the verniers on the azimuth circle are made when the transit is observed we can deduce the reading corresponding to the geographical meridian.

The mean of all the readings of the verniers gives the reading on the azimuth circle corresponding to the magnetic meridian.

The two verniers on the azimuth circle having been read, the magnet is then inverted, i.e.

Repsold introduced essential improvements in the meridian circles by substituting microscopes (on Jesse Ramsden's plan) for the verniers to read the circles, and by making the various parts perfectly symmetrical.

The word is used also to designate the supporting frame or arms carrying the microscopes or verniers of a graduated circle.

Measures 1 The circles by Reichenbach, then almost exclusively used in Germany, were read by verniers only.

verniers's Meaning':

French mathematician who described the vernier scale (1580-1637