Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 103
bout 1620. Delvigne, a Frenchman, de-vised a lengthened bullet narrower than the bore so as to enterfreely, under the pressure of firing it completely filled the bore,rotating with great velocity as it sped forth. 65 Q6 FORMS TO LESSEN RESISTANCE Now that railroad speeds are approaching those of… … Racing automobile. Wedge front and spokeless wheels. ing the resistance of the air. Racing automobiles are usually en-cased in a pointed shell which parts the air like a wedge; theirwheels, too, are supported not by spokes, but by disks having noprojections. As electric traction becomes more and…
Inventions · Inventors
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