Miles per gallon? How quaint!
Tuesday, January 16th, 2007 I don’t know why I’ve never realised this before, but while we commonly quote fuel economy in miles per gallon, or litres per 100km, the whole thing resolves to area. Volume (gallons or litres) divided by distance (miles or km) equals area.
You can visualise this geometrically: distribute the fuel in a long cylinder along [...]