"Behold," he said, "the one-man and no-horse farm where the farmer sits on the porch. Please imagine the porch."
In the center of the field was a stout steel pole, at least twenty feet in height and guyed very low.
From a drum on top of the pole a thin wire cable ran to the extreme edge of the field and was attached to the steering lever of a small gasoline tractor. About the tractor two mechanics fluttered. At command from Dick they cranked the motor and started it on its way.
"This is the porch," Dick said. "Just imagine we're all that future farmer sitting in the shade and reading the morning paper while the manless, horseless plowing goes on."
Alone, unguided, the drum on the head of the pole in the center winding up the cable, the tractor, at the circumference permitted by the cable, turned a single furrow as it described a circle, or, rather, an inward trending spiral about the field.
"No horse, no driver, no plowman, nothing but the farmer to crank the tractor and start it on its way," Dick exulted, as the uncanny mechanism turned up the brown soil and continued unguided, ever spiraling toward the field's center. "Plow, harrow, roll, seed, fertilize, cultivate, harvest--all from the front porch. And where the farmer can buy juice from a power company, all he, or his wife, will have to do is press the button, and he to his newspaper, and she to her pie-crust."
"All you need, now, to make it absolutely perfect," Graham praised, "is to square the circle."
"Yes," Mr. Gulhuss agreed. "As it is, a circle in a square field loses some acreage."
Graham's face advertised a mental arithmetic trance for a minute, when he announced: "Loses, roughly, three acres out of every ten."
"Sure," Dick concurred. "But the farmer has to have his front porch somewhere on his ten acres. And the front porch represents the house, the barn, the chicken yard and the various outbuildings. Very well. Let him get tradition out of his mind, and, instead of building these things in the center of his ten acres, let him build them on the three acres of fringe. And let him plant his fruit and shade trees and berry bushes on the fringe. When you come to consider it, the traditionary method of erecting the buildings in the center of a rectangular ten acres compels him to plow around the center in broken rectangles."