Halo, Wind-powered sculpture in Central Park, Sydney, Australia
Halo is a wind-powered sculpture in Central Park that features a large yellow ring with a 12-meter diameter mounted on a silver mast. The work stands roughly 13 meters tall and rotates gently in response to wind currents.
The work opened in 2012 as part of a major redevelopment that transformed the former Kent Brewery site into a public space. Artists Jennifer Turpin and Michaelie Crawford created the kinetic installation as part of this urban transformation.
The ring's off-centre circling echoes the stirring of brewing vats and the tipsy effects of alcohol, a nod to the Kent Brewery that once occupied the site. The form itself refers to the circular brewing-vat support still visible in the decommissioned Brewery Yard building.
The sculpture is located on Chippendale Green, a recreational area within Central Park that is open to visitors at no cost throughout the day. You can visit anytime and observe how the work moves in response to changing wind conditions.
The bearing unit designed by mechanical engineer Arran Gordon of Partridge uses a single 12 mm partially stabilised zirconia ceramic ball to carry the entire weight of the ring and arm. This lets the sculpture sway in winds as low as 2 km/h, with brakes damping motion at higher speeds.
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