Re: Potassium nitrate...
I've no problem with nostalgic recollections of childhood pranks while learning about chemsitry, physics, and gunpowder. I did my bit too, although I tended to go for elecric igniters.
But the signal to noise ratio of this group is going downhill fast.
What with secret UN compounds in Texas, Asteroid impact nonsense, planet 'X', and idiot savants like SM and Sunblok, I don't get a lot of value out of this anymore.