Gunner's quadrant and perpendicular, c 1780.

 
Gunner's quadrant and perpendicular, c 1780.
4 0 c m
 
29cm
actual image size: 21cm x 32cm

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.

© Science Museum / Science & Society Picture Library

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas

image details