The large Alexander Calder mobile sculpture hung in the Ruffin Building ... The airplane taking the hanging sculpture’s place ...

ALEXANDER CALDER is the name and mobiles are his game. OK ... precursors of kinetic sculpture — mobiles — among them Alexandr Rodchenko and his oval hanging construction, Man Ray’s coat-hanger works ...

Alexander Calder was an American artist ... His style of sculpture became known as mobiles. Mobiles are hanging sculptures that move because of the air moving around and under them.