How to Make a miniature vortex cannon

This is a video tutorial in the Education category where you are going to learn how to make a miniature vortex cannon. For this you will need normal plastic drinking cup, punching bag type balloon, black electrical tape, lighter, candle, scissors and a drill. Drill a hole in the bottom of the cup and cut off a big circle at the bottom. Cut the punching bag balloon in half and stretch it over the mouth of the cup and tape it up nicely. The cannon is ready. Now light the candle, hold the cup away from the candle with the bottom hole pointing towards the candle. Pull the thread on the cup and release and bang, the candle goes off with the shock wave.