Follow-up question: Usually a hot gas come out of a rocket nozzle so the shape is due to pressure (thank you MD11Engineer
What is the exhaust is a plasma? It's hot enough to be ionic and thus would need to be controled by magetic solenoid fields, but is there a pressure difference to cause a need for a traditionally shaped rocket nozzle? Or is the solenoid shaped that way?
BTW, I'm watching October Sky right now -- never seen it and have no prejudgements -- this should be interesting.
My friend who let me borrow the disk asked me how I can be into SciFi movies like Stargate, Event Horizon, Contact, etc and still be in aeronautical engineering rather than astronautical. I don't know what to tell him.
Guilty pleasure I guess.
The meaning of life is curiosity; we were put on this planet to explore opportunities.