Part 4 of

We had this one tube that never even bulged with both ends crimped.

Apr 05, Here’s my version of the tree stump removing stove. Enjoy. Oct 23, The rocket motor’s end caps are made from ground clay cat litter. [Grant] rams the layers with a wooden dowel and hammer. First a top cap of clay, then the rocket fuel, then a bottom cap Estimated Reading Time: 2 mins.

For every story you hear about someone who messed around with zinc-sulfur without any trouble, you hear another from someone who was seriously injured.

Mar 31, Potassium nitrate can be ordered through online firework supply houses, and pure chemicals are always best, but I find that if you check the label, some stump remover is 99% potassium nitrate. Once you have the nitrate, the next thing is to get some common sane sugar.

The potassium nitrate is the oxidizer and the sugar provides the fuel.