[Charcoal + Potassium Nitrate + Sulphur] when ground together in the right proportion, make … great photos!
Here is a scene from chemistry class.
First, we made charcoal by heating hardwood without oxygen. This produces a lot of smoke, but in the end, all that’s left in the test tube is charcoal sticks.
Second, we ground the charcoal to a powder, and added a some potassium nitrate and sulphur.
Here is a spoonful of the fresh made black powder
Upon touching a hot coal to it, it ignited and combusted with a lot of smoke!
Quite bright! This is a neat photograph (taken with Droid X)
(Proper safety precautions were taken during this class, including fire prevention and eye protection. Do not repeat without appropriate knowledge and safety precautions in place)