The Way Things Go

A clip from the 30 minute chain reaction called "The Way Things Go".
In this scene the fire is the instigator in this section of their chain reaction.

In 1987 Swiss artists Peter Fischli and David Weiss built a enormous, precarious structure 100 feet long out of common items. Using fire, water, gravity, and chemistry they create a mind-blowing chain reaction of physical and chemical interactions and precisely crafted chaos.