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.
When a change of variable occurs, there are two main types of feedback to which the system reacts: 1  Negative feedback: a reaction in which the system responds in such a way as to reverse the direction of change. 2  Since this tends to keep things constant, it allows the maintenance of homeostasis.