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"Noon cannon"
This dial, made by Rousseau, consists of a round marble slab engraved with a sundial and carrying a brass gnomon. A small brass cannon holding a tilting lens is attached to the slab. At noon, the Sun's rays, focused by the lens, ignite the gunpowder and thus cause the cannon to fire. For this reason [...]
Skaberen
- Rousseau
Udgiver
- Museo Galileo - Istituto e Museo di Storia della Scienza
Emne
- Astronomi
- astronomy
Type af genstand
- Sundial
- sundials
Ejerinstiution
Rettigheder for medierne i denne optagelse (medmindre andet er angivet)
- http://rightsstatements.org/vocab/InC/1.0/
- http://rightsstatements.org/vocab/InC/1.0/
Rettigheder
- © Museo Galileo - Istituto e Museo di Storia della Scienza
Oprettelsesdato
- early 19th cent.
- 1820
- 1801
Steder
- French
Identifikator
- urn:imss:instrument:402089
Omfang
- diameter 302 mm
Sprog
- eng
- ita
Referencer
- http://catalogue.museogalileo.it/biography/Rousseau.html
År
- 1801
- 1820
Leverende land
- Italy