Zetterburn is a Fire Nation warrior using flame control abilities. Forsburn escaped Fire Capital after father's assassination. Clairen controls flame and plasma from distant future
Deflagration is subsonic combustion through pre-mixed flame in explosive mixtures. Flame speeds in deflagrations range from 1 m/s, unlike supersonic detonations. Most daily fires are diffusion flames
Detonation is a supersonic combustion with shock waves traveling at 1 km/sec. Unlike deflagration, detonation doesn't require external oxidizer. More destructive than deflagration with supersonic blast fronts. Can occur in both solid and liquid explosives, as well as reactive gases
Mushroom cloud is a distinctive flammagenitus cloud from large explosions. Forms when lower-density gases suddenly rise due to Rayleigh-Taylor instability. Cloud contains debris, smoke, and condensed water vapor. Can be caused by nuclear explosions, conventional weapons, or volcanic eruptions
Explosive detonation creates shock wave compressing air with abrupt pressure increase. Blast wave travels until interacting with object and reflecting back. Pressure decays exponentially during interaction with objects
Vibration standards guide construction and blasting to prevent damage. Peak particle velocity (PPV) is most accepted damage indicator. Standards use log scales to show allowable vs non-allowable vibrations