Masayoshi Son, entrepreneurial founder of Softbank, Japan's third-largest mobile network, and according to Forbes, the nation's richest man, unveiled a vague but undeniably ambitious plan to completely change Japan's energy infrastructure. His plan, which relies heavily on wind and geothermal power and abandons nuclear, would, he says, shift the majority of Japan's energy sources to renewable energy by 2030.
An aging transmission line built in 1948 is the only link between the U.S. power grid and the little city of Presidio in West Texas. So Presidio has invested in a single huge battery that can power the entire town and serve as emergency backup for the frequent outages caused by the line going down, NPR reports.
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.