the mca dna series is a ongoing series of exhibitions by chicago's museum of contemporary art, designed to showcase works from its vast collection. currently on is mca dna - alexander calder, an edition that traces the development of, yes indeed, artist alexander calder [1898-1976] and his ideas over a fifty-year career. trained as an engineer, calder applied his knowledge of mechanics to colourful abstract shapes. activated by air currents, his mobiles are dynamic ever-changing compositions. this exhibition presents examples of the artist's mobiles, stabiles, and works on paper dating from the 1920s to the 1970s, a selection of the museum’s in-depth holdings of the seminal artist’s work [on through aug 17 of next year]. location: 220 east chicago avenue [near north side].