China Syndrome

beating the smog on an air filtration bike                     Reuters/Petar Kujundzic

It seems the Chinese are all into DIY these days. Maybe they always were (viz., fireworks, paper, you know ~ walls). The point is, they're really, really good at it (slideshow): http://www.theatlantic.com/infocus/2013/05/chinese-diy-inventions/100511/