Cool, slow-motion footage of a candle igniting acetylene gas, as part of a science experiment for a YouTube channel. <br /><br />The video, filmed in NSW, Australia on Sunday, shows the gas forming from a reaction between a calcium carbide rock and water, and when it reaches the flame it ignites into a big fireball. <br /><br />The video was produced by Jacob Strickling, who runs the YouTube channel Make Science Fun.
