Aatish Bhatia, a recent physics PhD, describes the forces involved to do a skateboard Ollie. It’s all about managing your center of gravity and applying variable amounts of torque to steer the board in the air. Yeah. It probably won’t help you skate any better, but it’ll help you appreciate the tricks a little more. [via kottke]
Divorce Rates for Different Groups
We know when people usually get married. We know who never marries. Finally, it’s time to look at the other side: divorce and remarriage.
Real Chart Rules to Follow
There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.