Walking is Good for the Brain

Have you ever wondered why one of the most difficult things to teach a robot to do is to walk on two legs? It turns out there's a reason. Apparently, the simple act of walking turns out not to be so simple after all. Professor Florentin Worgotter of the University of Gottingen in Germany explains why teaching a robot to walk on bumpy terrains like cobblestones is so challenging: "Releasing the spring-like movement at the right moment in time—calculated in milliseconds—and to get the d...

 Using Someone Else as a Sounding Board for Debugging

A very simple but particularly useful technique for finding the cause of a problem is simply to explain it to someone else. the other person should look over your shoulder at the screen, and nod his or her head constantly (like a rubber duck: bobbing up and down in a bathtub). they do not need to say a word; the simple act of explaining, step by step, what the code is supposed to do often causes the problem to leap off the screen and announce itself.