"You need to know where the nodes are"

If you're interested in the physics of baseball, David Pinto has a fine KQED program up. "You can observe a lot just by watching," to quote a noted philosopher.

Meanwhile, check out the Phillies helping the Coors Field ground crew 'rastle the tarp. I can say with certainty, I've never seen that before. But as Emma asks, where were the Rockies players?