I must admin I'm not sure about that. I'm a student of aerospace engineering at a german university and we never use imperial units. Wikipedia says: "Pound (mass), a unit of measurement incorrectly abbreviated as "lbs" in plural ("lb" is both singular and plural)". Therefore it seems I was right and lb is equivalent to kilogramm (kg) and a unit of mass not force. Ok, just found another article that says it's used as a unit of force too... weird.

Nonsense, aircraft thrust (is that what you mean with power?) is measured in (kilo)newton. lbs / square inch would be rather something like a presure unit (if you would consider lbs a unit of the force which it actually is not)

I was really shocked when I read that the uni charges 2,5c per MB. I have a free of charge internet connection in my uni (cable or WLAN) that is fast as hell (sometimes download rates around 12 MB/s).