Matches in DBpedia 2016-04 for { ?s ?p "In pyrotechnics, a flame projector is a special effects device that projects a column of flame upwards, for a short, determined and controllable, period, usually on the order of a few seconds. The simplest form of flame projector is simply a vertical tube mounted on a base, containing powder and a hole for an electric match.Flame projectors can produce flames of different colours by simply adding a colouring agent. Potassium compounds make purple compounds, for instance."@en }
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- Flame_projector comment "In pyrotechnics, a flame projector is a special effects device that projects a column of flame upwards, for a short, determined and controllable, period, usually on the order of a few seconds. The simplest form of flame projector is simply a vertical tube mounted on a base, containing powder and a hole for an electric match.Flame projectors can produce flames of different colours by simply adding a colouring agent. Potassium compounds make purple compounds, for instance.".
- Q5457175 comment "In pyrotechnics, a flame projector is a special effects device that projects a column of flame upwards, for a short, determined and controllable, period, usually on the order of a few seconds. The simplest form of flame projector is simply a vertical tube mounted on a base, containing powder and a hole for an electric match.Flame projectors can produce flames of different colours by simply adding a colouring agent. Potassium compounds make purple compounds, for instance.".