His short dance number is, nominally, a cha-cha, which is a shuffling sort of dance that originated in Cuba in the 1950s. Apparently on Dancing with the Stars, which I have never seen before, each dance is given its own elaborate, themed set. This one appears to be a Frankenstein riff? In which Bill Nye constructs a (young, beautiful) dancer, already in shiny sequiney dance dress, by using beakers filled with bubbling liquids in pretty colors? The dancer is lain on an operating table. Suddenly she bursts upright, with jazz hands.