“The Flux Divorce” – a famous public ceremony he staged with his wife, artist Nye Ffarrabas, to mark their split – “was just one of many adventurous artworks and art events he created or participated in during a career that also included teaching art at Rutgers University for 47 years. Mr. Hendricks literally looked to the heavens for inspiration for some of his art; he was known for paintings of the sky, which he would render on traditional canvases and assorted other surfaces. (A fellow artist, Dick Higgins, gave him the nickname Cloudsmith.) But, like other Fluxus artists, he went far beyond the boundaries of painting.”