VIDEO: Britta Riley: A garden in my apartment

Britta Riley wanted to grow her own food (in her tiny apartment). So she and her friends developed a system for growing plants in discarded plastic bottles -- researching, testing and tweaking the system using social media, trying many variations at once and quickly arriving at the optimal system. Call it distributed DIY. And the results? Delicious. (Filmed at TEDxManhattan .)

Britta Riley designs and builds urban farms and other participatory artworks that explore the city.