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A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...
The term "downdraft" can also refer to a type of backdraft which occurs through chimneys which have fireplaces on the lowermost levels (such as basements) of multi-level buildings. It involves cold air coming down the chimney due to low air pressure, and makes it hard to light fires, and can push soot and carbon monoxide into domiciles.
The backblast area is dangerous to ground personnel, [2] who may be burned by the gases or exposed to overpressure caused by the explosion. [3] In confined spaces, common in urban warfare , even the operators themselves may be at risk due to deflection of backblast by walls or sturdier civilian vehicles behind them.
Such an event is known as backdraft. A delayed flashover occurs when the colder gray smoke cloud ignites after congregating outside of its room of origin. This results in a volatile situation, and if the ignition occurs at the ideal mixture, the result can be a violent smoke gas explosion.
Costas, 72, called MLB games for 44 years, the vast majority of that with NBC. He started there in 1980 and over the years provides play-by-play for three World Series and 10 championship series.
The backdraft is a cocktail that is noted for its elaborate preparation and potency. Named after the backdraft which occurs in some fire situations, this drink produces a similar condition on purpose using flammable alcoholic drinks and an enclosing container, such as an upside down pint glass. Below is a typical procedure for producing one ...
Melissa liked to reinvent herself — through hairstyles — and careers. Most recently, the 27-year-old had been working as an EMT. Gus Lamesch: Melissa kind of fell into the line of work.
Typically, dementia is associated with classic symptoms like confusion and memory loss. But new research finds that there could be a less obvious risk factor out there: your cholesterol levels ...