Space technology has found its way down to agriculture in the form of GPS devices and robust, on board computers installed as optional features on farm tractors. These technologies are used in modern, precision farming techniques. The spin-offs from the space race have actually facilitated automation in plowing and the use of autosteer system drones on tractors that are manned but steered only at the end of a row. The idea is to avoid overlap, use less fuel, and not leave streaks when performing jobs such as cultivating.