This tutorial demonstrates how to create a simple underwater world in Kodu Game Lab.In this tutorial we add a fish to move around in the water.1  Education.his tutorial demonstrates how to create a simple underwater world in Kodu Game Lab.
An O-ring is a round ring that is used as a gasket for sealing a connection. O-rings are typically constructed out of polyurethane, silicone, neoprene, nitrile rubber or fluorocarbon. These rings are commonly used in mechanical applications, such as pipe connections, and help to ensure a tight seal between two objects.
O-ring - Other seals. 1  For sealings, there are variations in cross-section design other than circular. 2  There are also rings with a square profile, commonly called square-cuts, lathe cuts, or Square rings. 3  Similar devices with a non-round cross-sections are called seals, packings or gaskets.