This Fun Robot for Farmers is Like an RC Car with Augers for Wheels

Few of us ever think about grain silos. But if you've eaten bread, corn, rice, soybeans or the animals that eat those as feed, you've benefited from one. The design of grain silos is time-tested and simple. They're made tall rather than wide, both to minimize their footprint on the land and to allow gravity to help when it's time to empty them. They're made cylindrical for strength, as they need to securely hold hundreds of tons of grain. Established form aside, there is one persistent...