2nd in a set of experiments to see if I can make rockets that explode at their apogee. Surprisingly this second test did worst than the first with only a few making in more that 10 feet off the ground before exploding. Each rocket contained no more than 30 grams of homemade black powder. The purpose of the experiment is to design a delayed charge for parachute recovery.The experiment was mostly a failure but at least it was fun :) Please don't attempt what's shown in the video.