He famously asked his first wife, his high school geometry teacher for a divorce, when she was in the hospital with uterine cancer, Gingrich held himself to standards.
The result is half the kids drop out of high school, because NOW they have to take First and second year Algebra AND Geometry just to get a high School diploma.
The estimated fuel consumption saving for high speed highway operation of road trains is in the region of 20 percent depending on vehicle spacing and geometry.