The fire triangle is made of three things: warmth, gasoline, and oxygen, all of that are needed for a fire to ignite and sustain itself. The creation of gunpowder in China led towards the fire lance, a flame-thrower weapon courting to all over 1000 CE which was a precursor to https://landenneuix.blogsmine.com/37044758/the-2-minute-rule-for-fire-rated-ductworth-insulation