Watch the power and efficiency of the world’s largest wheat harvesting machines as they work through vast fields during ...

One day last week the price of wheat hit a 30-year high of $3.05 a bushel at Chicago. Then it began to drop. It plummeted 34½¢ from the high in two days in its biggest drop since the fall of France.

It can still thresh oats,barley and wheat. When used on the farms it took ten people to work it and threshing was a real community event. Combine harvesters now operate with only two people.