What’s a fire, and why does it burn?
When I was a volunteer firefighter circa 1999 we were forced to learn the definition of fire that would appease a lawyer / court in case we got subpoenaed.<p>Apparently somewhere else there had been an arson fire and the fire chief was on the stand and the defense asked him what fire was and all he could come up with was "it's hot" or something similar. I don't know if it caused the case to be won or lost but our Chiefs decided we wouldn't chance the embarrassment.<p>I'll now forever remember that "fire is the rapid oxidation of a combustible material resulting in the release of energy in the form of heat and light".<p>Still waiting on that subpoena and my chance to put this to good use. Or at least trivia night or something...