fire Derek Muller of the highly acclaimed video blog Veritasium recently interviewed some very interesting gentlemen in Denmark, Sweden. They built a so-called soundboard that displays the effect of sound waves traveling through a flammable gas. So, first things first, DO NOT TRY THIS AT HOME. The first half of the video deals with what and how things work but if you want things to get heated up we suggest you fast forward to about 3:38. Ergo HOT BEATS. Enjoy.