Word: shortest
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...shortest haul to any of the Allied battlefronts is 1,200 miles, the longest 14,000 miles. Every new front opened-in New Guinea, the Solomons, North Africa-is a strategic gain for the Allies, but it also imposes an additional drain on available shipping. The invasion of North Africa, and supply for the Allies after they were established in that theater, have required some 1,000 merchant voyages to date (the number of ships, each making several trips, may be considerably less...
...answer to this question. Every day the war continues prolongs, the agony of civilization; every month adds to the chaos with which the post-war world must deal; every year increases the hazards which liberty must encounter when the war is won. Therefore, to insure victory in the shortest span of time, no sacrifice can be too great...
...author of the article says: "Higher magnification requires shortest possible electron waves, hence higher voltage." As a matter of fact the wave length of electrons accelerated by say 15,000 volts is already roughly 50,000 times smaller than that of visible light. According to the information concerning magnification presented in the article the actual improvement gained by substituting electron waves for light is only 50-fold...
Pogue believes the answer is reasonable freedom of the air. For like many another air-minded expert he knows that the shortest route from Washington to Manila is not across the Pacific, but passes over the Great Lakes to Canada, on to Alaska, then down the coast of Siberia. He knows, too, that the air oceans are not bounded by ocean shorelines; that European planes will someday want to fly over U.S. territory direct to Chicago from London, just as U.S. air transports may want to take off from St. Louis for Cairo and way ports...
Greater magnification is possible because electron waves are shorter than light waves. Highest magnification requires shortest possible electron waves, hence higher voltage. The portable models sacrifice extreme magnification, but R.C.A. gives 5,000 diameters, G.E. 10,000 (compared to 2,000 useful upper limit in the best microscopes using light waves). Both can be "blown up" photographically to give in effect 100,000 diameters or more. The G.E. instrument, developed by Dr. Simon Ramo and Dr. Charles H. Bachman, has a horizontal system, is 52 inches high, operates on a 110-volt light circuit, The R.C.A. model, only 16 inches...