Facebook keeps its map of the social connections of the 1.6 billion people who use the service each month to itself. But it is giving away for free new maps it is building that describe patterns ...

China is the third largest country in the world after Russia and Canada, covering a whopping 3.7 million square miles. It also boasts the second largest population on the globe with 1.41 billion ...

There are, as everyone knows, a lot of people in China; around 1.35 billion of them, or roughly 20 percent of the world's population, live within the country's borders. In order to comprehend what ...