Alexander Calder, Black Areas, 1938.

Brigitte Waldach, Reflex-Love, 2016. Rubber band, wall drawing, foil.

Peter Fischli and David Weiss, A New Day Begins, 1984. From the series Equilibres (A Quiet Afternoon). Photo: Studio Fischli / Weiss © Peter Fischli David Weiss

Jose Davila, Joint Effort, 2015. Concrete, boulder and ratchet strap.