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-rings are used to seal connections. The space shuttle Challenger was destroyed shortly after liftoff on January 28, 1986, killing all seven astronauts onboard. The Space Shuttle Challenger disaster was caused by the failure of an O-ring seal.