The diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches).8 people found this useful.he diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches). 8 people found this useful.
Positive feedback mechanism. A process whereby an initial change in an atmospheric process will tend to either reinforce the process (positive feedback) or weaken the process (negative feedback). See Feedback mechanism.
Almost all homeostatic control mechanisms are negative feedback mechanisms. These mechanisms change the variable back to its original state or âideal valueâ. A good example of a negative feedback mechanism is a home thermostat (heating system). The thermostat contains the receptor (thermometer) and control center.