Dragon's Egg
Get Dragon's Egg essential facts below. View Videos or join the Dragon's Egg discussion. Add Dragon's Egg to your PopFlock.com topic list for future reference or share this resource on social media.
Dragon's Egg

A dragon's egg is a fireworks pyrotechnic star [1] which first burns for a period for a visual effect then explodes with a loud report. Manufacture of this effect became controversial because of the toxic compounds once used, particularly lead tetroxide (Pb3O4). [2]

Nowadays, however, bismuth trioxide or bismuth subcarbonate are commonly used as more environmentally friendly substitutes for lead compounds to achieve the effect, and its occurrence in fireworks displays has since become much more common.

Because of how heavy an individual bismuth atom is, a shell or cake containing mainly dragon's eggs (and therefore enriched in bismuth) is often noticeably heavier than a similar device containing other effects.

Further reading

  • Croteau, Gerry; Dills, Russell; Beaudreau, Marc; Davis, Mac (2010). "Emission factors and exposures from ground-level pyrotechnics". Atmospheric Environment. 44 (27): 3295. Bibcode:2010AtmEn..44.3295C. doi:10.1016/j.atmosenv.2010.05.048.
  • Ledgard, Jared (2006-02-22). The Preparatory Manual of Black Powder and Pyrotechnics. ISBN 9781411685741.

References


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

Dragon's_egg
 



 



 
Music Scenes