I agree, I don't get the non-metric terminology either.
Three square foot pounds of pressure (wtf).
Three ounces to a gallon. (??)
Foot? (feet vary in size :P ).
And that's the scientific stuff, it all gets really sweet when you find a recipe for a film dev and it says:
"cups" and "teaspoons"
- How did you people manage to send people to the moon???
Metric is so much easier to deal with, since just about everything is a power of 10 and it is exact all over the world, no matter what cups and teaspoons there may exist, or how big feet people have :P