Geohashing

Summer seems to have arrived, at last. As you may have noticed, today’s comic contains an algorithm for converting dates into local coordinates. For a given day, you can calculate what that day’s coordinate is for your region. Dan has put together a tool for calculating a day’s coordinates and show it using Google Maps. […]

GPS Cyborg Implant

Last week, I wrote a short Python script that uses a USB GPS device under Linux to help with navigation.  It doesn’t have maps or anything — it just gives distances and, while you’re moving, the direction to the destination (as in “two o’clock”).  It prints this info on the terminal and speaks it using […]

Friday Night

So there I was at the stroke of midnight, contemplating the four-knights opening by the dim glow of a flashlight, ears popping under the extra five pounds per square inch of pressure. On Friday night, Dan (who you may remember as the Robot9000 bot author), Finn and I invented midnight underwater speed chess. A nice feature […]

Center of Population

What’s the world’s center of population? The center of population for a region is, roughly, the center of mass of the inhabitants. The Census bureau defines the center of population of the US (currently in Missouri) as the point at which an imaginary, flat, weightless, and rigid map of the United States would balance perfectly […]