We'd never heard of the French dancer and artist ​Yoann Bourgeois, but according to the New Yorker, he's "an unsurpassed master of the trampoline as a tool for poetry." If you have no idea what that means, take a look at these clips from his company's performances at the Panthéon in Paris earlier this month. Called "La mécanique de l'histoire" ("The Mechanics of History"), the piece uses a rotating spiral staircase, a trampoline and some identically dressed dancers to create the dance equivalent of an M.C. Escher print