Take a look at this awesome map from the research group Telegeography. It shows more than 120 major undersea cable systems, including the longest one, which clocks in at more than 24,000 miles. The map also includes stats on the amount of data the cables carry (about two terabytes a second under the Atlantic) and a diagram of how they work. Download a free version of to use as wallpaper on your computer—and the next time a cable gets cut, you’ll be able to figure out which countries won’t be receiving any email that day.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.