per square mile
August 6th, 2011Interesting infographics showing how much space the 6.9 billion people in the world would occupy if the world’s population lived in one city. (Each info graphic represents the population density of a different city.)
Archive for August, 2011
things that fall through the night while you sleep
August 5th, 2011A few years ago I blogged about the NASA Asteroid Watch mailing list. Those bright guys at NASA would email you when an Asteroid or space debris came within sight of the Earth. Yeah, this ranks up there with the antigravity pen in terms of ideas to come out of NASA that weren’t so brilliant. […]