Dip quadrant. A long steel needle mounted on a brass stand allowing it to rotate in one direction. An arc of brass projects from the base of the stand in the same direction as the rotation of the needle. The arc is marked with a degrees scale.

ADBNP:202091a

For determining the angle of tilt from the vertical of the local magnetic field. Brass dip quadrant calibrated at 2 degree intervals from 0 (at bottom) to 84 degrees on circular brass base with embeeded lead weight. Pivoted lozenge-shaped needle pointed at both ends is centrally balanced on pivot. Stamped on base 'Univ. Abdn. Nat. Phil.' and also with paper label on base 'The Property of the University of Aberdeen'.

1790-1840

brass

Physical Object