Nautical Brass Theodolite.

  • $779.99 CAD

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Nautical Brass Theodolite.

Theodolite, basic surveying instrument of unknown origin but going back to the 16th-century English mathematician Leonard Digges - it is used to measure horizontal and vertical angles. In its modern form, it consists of a telescope mounted to swivel both horizontally and vertically. Levelling is accomplished with the aid of a spirit level; crosshairs in the telescope permit accurate alignment with the object sighted. After the telescope is adjusted precisely, the two accompanying scales, vertical and horizontal, are read.

Surveying, a means of making relatively large-scale, accurate measurements of the Earth's surfaces. It includes the determination of the measurement data, the reduction and interpretation of the data to usable form, and, conversely, the establishment of relative position and size according to given measurement requirements. Thus, surveying has two similar but opposite functions: (1) the determination of existing relative horizontal and vertical position, such as that used for the process of mapping, and (2) the establishment of marks to control construction or to indicate land boundaries.

Item Code - TOO8E165221S

Width: 4 1/8"  Height: 8 3/4"  Depth: 4 1/8

Weight: 1.723 kg

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