In our world, methods and technology is constantly changing. Now there are self driving combines to harvest grain fields, but last century there were huge steam engines using belts to power threshing machines to separate the grain, like oats, from the stalks. Bundles of grain on a wagon were unloaded at one end and if all the belts and gears are working, the grain kernels are bagged and the straw is blown into a pile.
Old Grain Thresher
