page_title: Sundial cannon
hierarchical_section_title: Sundial cannon
caption_attribution_description: Sundial cannon
context_page_description: A sundial cannon, sundial gun, noon cannon or meridian cannon, also noonday gun is a device consisting of a sundial incorporating a cannon with a fuse that is lit by an overhanging lens, concentrating the rays of the sun, and causing the cannon to fire at noon, when properly oriented along a north–south axis. The cannon sizes ranged from large to small depending on the location of their use. The household variety was used in estates to signal the time for the midday meal. Larger sizes were used in European parks to signal noon.
  The cannons were used by European royalty in the 18th century. Cannons of this type are exhibited at the National Maritime Museum in Greenwich. The Hamilton Watch Company has a sundial cannon manufactured by Rousseau of Paris ca. 1650. The Rousseau cannon is mounted on a marble sundial and is made of brass. The Sultan of Morocco also owns one that was manufactured by Baker & Sons of London.
context_section_description: A sundial cannon, sundial gun, noon cannon or meridian cannon, also noonday gun is a device consisting of a sundial incorporating a cannon with a fuse that is lit by an overhanging lens, concentrating the rays of the sun, and causing the cannon to fire at noon, when properly oriented along a north–south axis. The cannon sizes ranged from large to small depending on the location of their use. The household variety was used in estates to signal the time for the midday meal. Larger sizes were used in European parks to signal noon. 
  The cannons were used by European royalty in the 18th century. Cannons of this type are exhibited at the National Maritime Museum in Greenwich. The Hamilton Watch Company has a sundial cannon manufactured by Rousseau of Paris ca. 1650. The Rousseau cannon is mounted on a marble sundial and is made of brass. The Sultan of Morocco also owns one that was manufactured by Baker & Sons of London.
caption: A small brass cannon mounted on a marble sundial base, manufactured by Rousseau of Paris
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