Word: contouring
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...least of the Fairchild aerial wonders are aerial contour maps, now made in a big way for the Department of Agriculture in connection with soil conservation work. In a vertical aerial photograph the earth's surface looks perfectly flat. Third dimensional relief can be obtained by the principle employed in the oldtime stereoscope. Pictures of the same area are shot from two slightly different positions, thus providing a parallax in the same way that a person's two eyes do in normal sight. The two pictures are then inserted in a super-glorified stereoscope (built with Zeiss...
Greasing his fingers, Williams then coated the skull with modeling clay. He spread it thinly, following the contour of the bone evenly. Gradually he applied other layers, feeling his own jowls & forehead for guidance. The length of the nose he determined by measuring the distance between the bridge and the roots of the upper teeth: its contour by following the curve of the nasal bone. To get the fullness of the cheeks he held a pencil from the cheekbone down to the jawbone and allowed a little for normal rounding. He used the same instrument to determine...
...Princeton University and his associates had been working on for three years. Dr. Field had no thought of learning anything new about the surface topography of the sea bottom. A great number of soundings with the old-fashioned line & sinker, more recently with the echo sounder, have disclosed that contour to oceanographers. Dr. Field wanted to know what lay beneath that bottom. I occurred to him to use the "artificial" earthquake method by which oil prospectors map subterranean rock structures. This involves setting off charges of dynamite, measuring the time required for the earth ripples to reach a seismograph planted...
...better ride, better traction and much more room available in the body of the vehicle. . . . This gives a much better art possibility for appearance than the old-type car. . . . Sweeping lines can be run clear from the front to the rear-no projections, no bumps, smooth contour, and the sleekness of line of a purring kitten...
...Military Science and Tactics to give ROTC students practice with this set of guns, in order that they may become acquainted with the use of the panoramic sight and gun squad work under almost actual conditions. While the pieces have a wide range of dispersion, due to the cylindrical contour of the projectile, it is nevertheless possible to hit a "house" three inches high at a distance of 75 yards...