Poor Man's TNT: Improvised Guncotton

Guncotton is poor man's TNT. It is the easiest and cheapest explosive you can make. It requires only three easily found and legal ingredients and no special skills, equipment or training. And guncotton can be improvised in seconds. As the first modern explosive, guncotton also has historic significance. Explosives are dangerous, so this is for academic study only.