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.
Strictly speaking a normal ring is a finger ring (which may be hyphenated); other types of rings worn as ornaments are earrings, bracelets for the wrist, armlets or arm rings, toe rings and torc or neck rings, but except perhaps for toe rings, the plain term ring is not normally used to refer to these.