Huh.

That's a weird use of orthogonal to me. I guess it's because in physics, things we describe so often have x,y-dependent relationships. Like curls, for instance. In my encounters, it's always been a stress on the perpendicular relationship, not independence. Then again, I guess it's a matter of perspective. -The path of a thrown ball is described by x,y relationship, however, the x and y components are independent.

Eh, po'tato, pota'to.