THE SECRETS OF PYROTECHNIC WHISTLES - by Joseph A. Domanico. In this 87-minute fascinating seminar, Joe explains how whistles are made. He uses plenty of visual aids and he dives right in by explaining the physics and chemistry of whistles. Whistles are a lot more than simply pounding some chemicals into a paper tube, and Joe covers it all! Pressing force is covered in detail, and the best formulas are explained and detailed. The climax comes when Joe explains how to make whistles more entertaining, and includes making Roman candle whistles, step whistles and how to get different effects.
