I am really looking for a technical answer from somebody who has done ATC first hand. I have a few questions that I am looking to be answered:

1.First, in controller training do they give you basic explanations of pilots emergencies? I mean I watched 121.5 and the controller didn't know what a double vaccum loss what or what it meant. Yes, the pilot could of explained it to her but, thats what I am talking about.

2. Also, how does all the chaos in the air get coordinated? I know you talk to people on landlines and stuff but, how do you manage to control 50+ airplanes and talk to other controllers?

3. Also, what is a TRSA? I have a basic idea from what I learned in PPL training.

Any insight would be helpful.