In subway stations in Berlin, new projectors cast glowing advertisements on the walls, exhorting commuters to buy Volkswagens or something. In this video, a group called Post marches into a subway station carrying mysterious apparatus, and proceeds to modify the projectors so that they display pleasing fragmented images instead. Kind of like how our everyday experience is increasingly fragmented by ze city's barrage of commercial messages from every angle, no?
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.