People use generator-equipped bikes to play info videos at the booth of Brazil at the Frankfurt Book Fair 2013 on October 2013 in Frankfurt am Main, western Germany. Brazil is the guest of honor of the 2013 book fair held from October 9 to
This ad created for The Economist is designed with a motion sensor which lights up the bulb whenever somebody walks directly underneath it. Which could be disastrous. What if somebody walks underneath exactly as they're having a terrible idea?