The Backyard Scientist built a giant vortex cannon in a video for GoPro. Not satisfied to simply blow smoke rings, Kohler filled his creation with propane and launched the gas at a lit blowtorch to create a burning ring of fire.
Backyard Scientist Builds a Giant Fire Vortex Cannon
Glen Tickle
Amelia's dad. Steph's husband. Writer, comedian, gentleman. Good at juggling, bad at chess.