I was talking to an ex-navy reactor man at a bar once. He said one of the most important things for naval reactors is to make sure you were making the "right k

I was talking to an ex-navy reactor man at a bar once. He said one of the most important things for naval reactors is to make sure you were making the "right kind of bubbles." I never found out if this was some kind of navy joke or if he was talking about Nucleate boiling.