most people understand if you say, oh, the tomatoes in tuscany on the north slope taste so good, and. that's those genetics under those conditions that cause that beautiful tomato. so we study that inside of these boxes with sensors, and the ability to control climate. >> pelley: tuscany in a box. >> harper: tuscany in a box, napa in a box, bordeaux in a box. >> pelley: now, these are plants you're growing in air. >> harper: yeah. >> pelley: these basil plants grow, not in soil, but in air... >> harper: the plant is super happy. >> pelley: no dirt. ...air saturated with a custom mix of moisture and nutrients. >> so each one of these are drops that drops down to the reservoir. >> pelley: the food computers grow almost anything, anywhere. >> pelley: what have you learned about cotton farming? >> harper: so, cotton is actually a perennial plant, which mean it would grow, you know, the whole year long, but it's treated like an annual. we have a season. so in this environment, since it's perfect for cotton, we've had plants go 12 months. >> pelley: so how many crops can you get in a contr