Duck Hunt Like It's 1945
A slideshow (with commentary) of Robert Polidori's photographs of New Orleans after hurricane Katrina. Great stuff. Polidori's one of my favourite photographers.
A website collecting links to photography competitions worldwide. Very useful!
Money Tracking web-game informs mathematical model of epidemics(boingboing)
A web-game that encourages people to track the serial numbers of dollar bills as they move around the country has produced the best model to date for explaining some of the ways that infections diseases spread. Where's George? players mark their bills with WHERESGEORGE.COM; visitors to the site are encouraged to enter the serial number of the bill they've found and where they got it. In this way, the passage of a dollar-bill (or some other piece of infection) can be tracked around the country.Researchers at the Max Planck Institute used the data-set from Where's George? to compile a highly accurate model of human travel, which, in turn, has been key to understanding the way that diseases spread: The physicists were intrigued: Like viruses, money is transported by people from place to place. They found that the human movements follow what are known as universal scaling laws (from local to regional to long-distance scales). Using the game data, they developed a powerful mathematical theory that describes the observed movements of travelers amazingly well over distances from just a few kilometers to a few thousand. The study represents a major breakthrough for the mathematical modeling of the spread of epidemics. (science blog)