This map by mathematician and software developer Brad Lyon visualizes all simulated births and deaths around the world in real time, using the d3.js library created by Michael Bostock (NYTimes graphics editor). The results are absolutely mesmerizing. It's one thing to know that, based on current birth and death rates, hundreds of people are born and hundreds others die nearly every minute. It's another thing entirely to see it.
Read more about the project over at the Atlantic, or
see the map in action here.