Calgary-based artists Caitlind r.c. Brown and Wayne Garrett (previously) swung by Chicago this month and installed this amazing interactive lighting solution called Cloud Ceiling at Progress Bar. Constructed from hand-bent steel, reflective mylar, electronics, motion sensors, LEDs, and 15,000 re-appropriated incandescent light bulbs, the cloud is now a permanent fixture in the bar which opened earlier this week. Motion sensors embedded in the ceiling cause the cumulous surface of light bulbs to illuminate, effectively ‘mapping’ a lit path through the cloud as bar patrons move through the space. Brown and Garret were featured in this space last year, for a similar interactive cloud installed at Nuit Blanche Calgary. You can learn more about Cloud Ceiling here.