Originally Posted by
delcrossv
It's the curl or vorticity of a flow field. (yes, I spend a lot of time thinking about aerodynamics)
Yours was one that actually made sense to me. I recall this from physics, but damn it has been a long time. I really did enjoy and miss studying physics and calculus.
I have selected chemistry for my day to day existence. But I could easily be happy being a math or physics teacher.