In a nutshell, the traveling salesman problem is as follows: “Given a list of cities and the distances between each pair of cities, what is the shortest possible route that visits each city exactly once and returns to the origin city?” Todd Schneider made an interactive that lets you punch in the cities yourself and then watch the process look for an optimum route. Fun to play with even if you’re not into processes. [Thanks, Todd]
A simulation of the traveling salesman problem
Where Bars Outnumber Grocery Stores
A closer look at the age old question of where there are more bars than grocery stores, and vice versa.
Watching the growth of Walmart – now with 100% more Sam’s Club
The ever so popular Walmart growth map gets an update, and yes, it still looks like a wildfire. Sam’s Club follows soon after, although not nearly as vigorously.