Abstract: A spherical support structure is provided. The spherical support structure includes a plurality of interconnected rib structures defining a spherical shape. Each rib structure includes a vertical rib, horizontal members connected to the vertical rib, a plurality of exterior diagonal members extending diagonally outward from the rib structure for connection to other rib structures, and a plurality of internal diagonal members connected to the rib structure and extending diagonally between a spherical exterior shell and a spherical interior shell. The spherical exterior shell being connected to and enveloping the rib structures. The spherical interior shell being connected to the rib structures and forming spherical cavity therewithin. A plurality of floor structures are mounted to the horizontal members of the rib structures and are horizontally disposed between the spherical exterior shell and spherical interior shell.

Abstract: Method and apparatus for creating in a water pool a wave for surfing, the pool having a reservoir at one end open to the pool beneath the undisturbed water level of the pool, a fan connected to the reservoir for expelling air from it and drawing water from the pool into the reservoir to store water above the undisturbed water level of the pool, and a valve for selectively sealing the reservoir against the intrusion of air and rapidly ventilating the reservoir so that the stored water flows into the pool by gravity at a velocity near its theoretical limit.