Focus on Halo (sculpture) and explain the abstract.
Halo is a wind powered kinetic sculpture in Sydney, Australia.  Located at Central Park, the artwork is part of a major mixed-use urban renewal project to redevelop the old Kent Brewery site in Broadway.It was designed by artists Jennifer Turpin and Michaelie Crawford of Turpin + Crawford Studio while engineering firm, Partridge, was responsible for the delivery.
The sculpture consists of a 12-metre diameter tapered yellow ring held by a 6-metre-long (20 ft) silver cantilevered arm pivoting off-centre atop a 13-metre-high (43 ft) angled silver mast.  The arm also serves as a sail, allowing the ring to turn and tilts in response to live winds.Commissioned by the developers of Central Park in collaboration with the local government, Halo was officially opened on 14 August 2012 and has since been donated to the City of Sydney as part of its City Art Collection.
Turpin + Crawford Studio kinetic sculpture City of Sydney wind powered Sydney Kent Brewery sail Central Park Broadway