70. TWO CONES

The Adelaide Bicenetennial Conservatory was designed by architect Guy Maron and built in 1988. It is of particular mathematical interest because the design is based on two identical cones sharing a common (vertical) base. This design feature leads not only to a striking structure, but also to economies of construction, since the curvature of the surface of a cone is constant. The surface is splayed at the ends to alow access to the conservatory. The conservatory makes a good starting point for investigating the volume and surface area of a cone, and the making of scale models.