so i'm sitting downstairs in front of the woodstove smoking a cigarette, staring at the flames... a random thoughts come to mind...if corn is dried (popcorn), why does it pop when you heat it? i would understand if the corn was moist, and the density of the moisture changing, but why the hell? another one... hydrogen is flamable, and oxygen is flamable. water is both hydrogen and oxygen. so why isnt water flamable? wouldn't it be possible for the heat to break the hydrogen and oxygen apart, creating more fuel for the fire?ah what the hell... why isnt gasoline flamable, but the vapors are?