Pour reprendre les commentaires ... :
"heathrow airport, statistically the busiest airport in the known world" as oppose to the unknown world!
"CEPFS, or Cadet Entry Pilot For Short"
"with over 17 years experience behind him in the air underneath his belt"
"Particle A has to pass thru point S to get to point F "T for time". What?, lets not confuse the issue. So Particle A has to pass thru point S to get to point F, then particle A has to pass thru poing S to get to point F"