Combine harvesting wheat. See Wikipedia's interesting explanation of combines.
When the combine's grain tank is full, the tractor catches up, driving under the cylinder that will deliver the wheat into the trailer it pulls.
Driving side by side, the combine delivers wheat grain into the trailer; at the same time, it continues to reap, thresh, and winnow. The trailer, once full, transports the wheat to trucks waiting on the field.
Eventually, the waiting trucks, full of wheat, rumble off the field and drive to a grain storage site.
At the storage site, a probe suctions some of the wheat for testing.
The driver turns the knob to open the truck's containers. The wheat falls between the bars . . .
. . . goes through the door at the bottom of the receptacle . . .
. . . and is transported by this elevator to the top of the storage silos.
Close-up view of the grain silos.
The grain that missed falling through the bars is swept into the receptacle.
A bucket full of the test grain also goes into storage.
MyMrMallory drove into the wheat field to get a closer view of the combines.
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