Square Roots isn’t your normal startup incubator. Sure, the people who participate are entrepreneurs — but instead of sitting at desks building new gadgets or smartphone apps, they’re growing food in hydroponic farms housed inside long, metal containers. Founded by executive chairman Kimbal Musk (brother of Elon Musk, and board member at SpaceX, Tesla and … Continue reading Urban farming incubator Square Roots raises $5.4M