How to find cheap gas using game theory
[Update 2-14-09] I'm on vacation; articles will resume in a week or two, or as soon as I recover :) I usually find cheap gas based on experience. In my vicinity, I am aware of gas stations that sell for good prices. A few pennies here or there does not bother ...

A mystery Sherlock Holmes couldn’t solve, but you can
Consider the picture below of bicycle tracks in the mud. Can you figure out which way the rider was going, to the left or to the right? This is not an easy puzzle. In fact, it was such a puzzle that once befuddled the great detective Sherlock Holmes. But the picture provides just ...