Bodenstein’s gauge

 In 1983, Swiss artists Peter Fischli and David Weiss unveiled a weirdly surreal film in which objects fall over, roll, catch fire, swing, pour, fizz, and flip for a mesmerising 30 minutes. Entitled Der lauf der dinge (The way things go) it spawned a host of imitators, and is a metaphor for an idea that first came to a German chemist whose work underpins modern chemical kinetics.