Back in November, South Korea announced that a project to create robot prison guards was underway. And just as predicted, the robo-guards are ready for their first tests. Check out video (complete with prisoner/robot interaction) after the jump.
Being a prisoner in China really seems like it would suck. Liu Dali, a (pseudonymous) former prisoner, was jailed for "illegally petitioning" the government about corruption, and sentenced to three years in a hard labor camp. During the day, according to The Guardian, he worked 12-hour shifts in a coal mine, and at night, he was forced to farm virtual gold online, which would be sold by the prison guards for a huge profit.
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.