*Performance Back in the pioneering days of the National Aeronautics and Space Administration (NASA), it was so exciting for a fourteen-year-old boy (me!) to listen to the lead-up to an imminent launch from Cape Canaveral. The jargon they used was fascinating – “Roger, Mercury 3”; “Copy that, Control”; “T minus 20 and Counting”; and, most exciting of all, “We are Go for Launch”. Then the countdown, and “We have lift-off” (never “Blast-off – that was strictly science fiction m