Clearing rocks out of fields probably isn鈥檛 something we鈥檙e all super familiar with, but it鈥檚 a very real problem for farmers. Like a lot of agricultural solutions we鈥檝e seen crop up in the past few years, tech is providing an answer.  uses drones, neural networks, maps with geolocation and robots to make life easier for farmers by finding and picking up rocks. Since its launch in late 2017, 糖心lovgo has raised $13 million.