Fast-forward to the era of educational technology, in which we’re beginning to see what I call “Pendulum 2.0.” I see Pendulum 2.0 as the swing from teachers drowning in an oversaturated ocean of "cool ...

A PENDULUM which is free to swing over a segment of a sphere has possible paths which vary from a rotation resembling an engine governor ball to the swing of a simple pendulum in a plane; which ...