Photo Agency - Astronomy - Space - Nature

> A 1800's sundial cannon

A 1800's sundial cannon

author: S.Aubin/Novapix

reference: a-cad01-90001

Image Size 300 DPI: 15 * 23 cm

A 1800's combination type sundial cannon. At noon the sun rays were focused by the lens to fire the cannon and announce the hour.

Keywords for this photo:

18TH CENTURY - ASTRONOMY - CANNON - MEASURE - SCIENTIFIC INSTRUMENT - SHADOW - SUN - SUNDIAL - TIME -