12-1 16:41 Farming continues. This operation is planting mint. The tractor is being driven by a computer. A coop of farmers have placed three permanent satellite receiving stations in the Tulelake Basin. The Auto Farm system is receiving GPS coordinates from three to four military satellites. In the foreground is a repeater. It is updating the tractor onboard system with 50 signals per second. All information is stored to accurately repeat the tractor's path in the future.
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