Damien Liu-Brennan and Tadao Yoshida Abstract: Fireworks (hanabi) were originally displayed on the Sumida River in 1733 as a memorial service for the victims of starvation due to crop failures and plague, and an epidemic of cholera. The fireworks display originated as the “Ryōgoku Kawabiraki Hanabi” (Ryōgoku River-Opening Fireworks) with only 20 fireworks displayed. Although …
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JPyro Board Members
We thank the following for their work as Board members of the Journal of Pyrotechnics Izaskun Astondoa Pirotecnia Astondoa, S.A. Barrio Irupago s/n 48143 Areatza (Bizkaia) Spain Pierre Thebault Etienne LACROIX Tous Artifices S.A. Route de Gaudies 09270 MAZERES France Andrew Tang Tian Cheng Pyrotechnics Laboratory Lihua Village Yanxi Town Liuyang City Hunan China 410304 …
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Theory of Colored Flame Production
B. E. Douda Abstract: The theories and attributes associated with the production of colored flames are presented. Particular attention is given to flames containing strontium (red), barium (green), sodium (yellow) and copper (green or blue). Thermal excitation of vaporized neutral atoms, molecules and ions is correlated with the emission of atomic, band and ionic spectra. …
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Sound Level Analysis of Firecrackers
Jeya Rajendran and T. L.Thanulingam Abstract: The noise levels from sound-producing firecrackers, both commercial and newly formulated, were measured. Commercial sound-producing firecrackers produce noise in the range of 130.7 dB(AI)/150.4 dB(C) peak to 142.8 dB(AI)/162.6 dB(C) peak at a distance of 4 m. A set of pyrotechnic compositions of potassium nitrate (KNO3), sulphur (S), aluminium (Al) and boric acid (H3BO3) …
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NARAM 2009
August 8-14 2009, Johnstown, PA Contact: web: http://www.psc473.org/naram51/ For other launch information visit the NARWeb site: http://www.nar.org
LDRS 2009
New York – July 2-6 2009 Contact: see web site web: http://www.rocketryplanet.com/content/view/2575/28/