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- Blue_light_(pyrotechnic_signal) abstract "Blue light is an archaic signal, the progenitor of modern pyrotechnic flares. Blue light consists of a loose, chemical composition burned in an open, hand-held hemispherical wooden cup, and so is more akin to the flashpan signals of the Admiral Nelson era than the modern, encased signal flares, often launched by mortar or rifle and suspended by parachute. Widely used during the eighteenth and nineteenth centuries for signaling by the world's military forces, and for general illumination in the civilian sector, blue light was remarkable for its use of poisonous arsenic compounds (realgar and orpiment), which contributed to its replacement by safer flares in the early twentieth century.".
- Blue_light_(pyrotechnic_signal) thumbnail Blue_Light.JPG?width=300.
- Blue_light_(pyrotechnic_signal) wikiPageID "34161990".
- Blue_light_(pyrotechnic_signal) wikiPageRevisionID "577288789".
- Blue_light_(pyrotechnic_signal) hasPhotoCollection Blue_light_(pyrotechnic_signal).
- Blue_light_(pyrotechnic_signal) subject Category:Emergency_communication.
- Blue_light_(pyrotechnic_signal) subject Category:Fireworks.
- Blue_light_(pyrotechnic_signal) subject Category:Lighting.
- Blue_light_(pyrotechnic_signal) subject Category:Military_communications.
- Blue_light_(pyrotechnic_signal) subject Category:Pyrotechnics.
- Blue_light_(pyrotechnic_signal) type Abstraction100002137.
- Blue_light_(pyrotechnic_signal) type Chemical114806838.
- Blue_light_(pyrotechnic_signal) type Explosive103304730.
- Blue_light_(pyrotechnic_signal) type Firework103348454.
- Blue_light_(pyrotechnic_signal) type Fireworks.
- Blue_light_(pyrotechnic_signal) type LowExplosive114853392.
- Blue_light_(pyrotechnic_signal) type Material114580897.
- Blue_light_(pyrotechnic_signal) type Matter100020827.
- Blue_light_(pyrotechnic_signal) type Part113809207.
- Blue_light_(pyrotechnic_signal) type PhysicalEntity100001930.
- Blue_light_(pyrotechnic_signal) type Relation100031921.
- Blue_light_(pyrotechnic_signal) type Substance100019613.
- Blue_light_(pyrotechnic_signal) comment "Blue light is an archaic signal, the progenitor of modern pyrotechnic flares. Blue light consists of a loose, chemical composition burned in an open, hand-held hemispherical wooden cup, and so is more akin to the flashpan signals of the Admiral Nelson era than the modern, encased signal flares, often launched by mortar or rifle and suspended by parachute.".
- Blue_light_(pyrotechnic_signal) label "Blue light (pyrotechnic signal)".
- Blue_light_(pyrotechnic_signal) sameAs m.0hr6mtz.
- Blue_light_(pyrotechnic_signal) sameAs Q4930109.
- Blue_light_(pyrotechnic_signal) sameAs Q4930109.
- Blue_light_(pyrotechnic_signal) sameAs Blue_light_(pyrotechnic_signal).
- Blue_light_(pyrotechnic_signal) wasDerivedFrom Blue_light_(pyrotechnic_signal)?oldid=577288789.
- Blue_light_(pyrotechnic_signal) depiction Blue_Light.JPG.
- Blue_light_(pyrotechnic_signal) isPrimaryTopicOf Blue_light_(pyrotechnic_signal).