Basics of Dynamic Equilibrium When is a chemical reaction over?  Sometimes reactions never finish, they just achieve a state where no further change appears to occur on the macroscopic level. […]

Identity, Presence and the Ageless Avatar in Social Virtual Worlds.    So, who are we as avatars?  For many of us, we have that “ageless” look—a largely socially constructed vision […]

Ideas around the world Today we're celebrating Ideas from across the world and all walks in life. We'll discuss any ideas from your own country, or anywhere else in the […]