Liutex is a new physical quantity discovered by Chaoqun Liu et al at University of Texas at Arlington (UTA) in 2018 to describe fluid rotation, which is same important as velocity, pressure, ...

One of the first steps toward becoming a scientist is discovering the difference between speed and velocity. To nonscientists, it’s usually a meaningless distinction. Fast is fast, slow is slow. But ...

SOME of your “general” readers, like myself, may wish to see the distinction between “velocity” and “speed” more easily defined than by a reference to the. calculus of quaternions, to which I believe ...