Gunner's quadrant and perpendicular, c 1780.

Hills, Jennie

Gunner's quadrant and perpendicular, c 1780.
3 4 c m
40cm
actual image size: 32cm x 26cm

Description

This instrument was designed primarily to ensure that a cannon or mortar was elevated to the required angle. Quadrants were also used for navigational purposes to determine the altitude between some heavenly body and the horizon. George Adams (1750-1795), was instrument maker to George III, as his father was before him.

Image Details

Artist
 
Image Ref.
 
10328259

© Science Museum / Science & Society Picture Library

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