Evening Star Newspaper, May 27, 1940, Page 22

New Atomic Gun Puts Every Electron Bullet Info Is Target If Projectiles Miss The First Time, They Come Back for More By HOWARD W. BLAKESLEE, Associated Press Science Writer, TTHACA, N. Y, May 27—An atomic gun which never fails to put every bullet into the target has been perfected at Cornell University. The gun fires electrons as bullets and, believe it or not, if these bul- lets miss the first time, they turn around and come back. This pro- cedure they keep up, back and forth, until every last one of them has found its mark. They travel at speeds of about 12,000 miles a second. When, on missing, they return to the gun, they do not enter the muzzle but Just approach it, and then rush off the same as if fired again. The gun gives them their directions and fur- nishes the initial energy to enable them to keep up their see-saw. Targets are Gas Atoms. Their targets are the atoms in gas, which are so hard to hit by elec- trons that ordinarily only one elec- tron out of every thousand would -make a hit. The others would be - wasted. The new atomic gun is a great step forward in a kind of scientific + investigation which is filled with po- tentially important results. It was developed by Prof. Lloyd P. Smith of the department of physics and his research assistant, A. Theodore Finkelstein. The gas atoms at which the eleetron bullets are fired become positively charged ions whenever they are hit. It has be- come extremely important to find a method by which large numbers of these positive ions can be pro- duced. The Cornell development represents the most efficient source of these important atomic projec- tiles yet produced. Their practical uses are two. They are used to disintegrate the nuclei of atoms and to help in separating -the heavy from the light atoms —_— GOOD-BY WASHDAY Look At This! 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The Net Bags get the wear—your clothes get the wash—and last longer than when washed by any other method. Phone Manhattan —And Enjoy Life You'll get back the cleanest, sweetest wash you’ve ever seen —only 89c¢ for 9 lbs. (Or, for only 24c additional, we’ll iron all the flatwork.) Phone for a ‘Manhattan routeman now! /T 7:?"1.,.,...:,.7 'A DIVISION OF MANHATTAN COMPANY 1326.46 Florida Ave, N.W. which form a given chemical cle- ment. The electron bullets of the Cornell gun are induced to fly back to the muzzle by an ingenious combination of electric and magnetic fields. Tons Herded to Axis of Gun. After hitting the atoms and chang- ing them into ions, the gun goes still further and herds all of the ions to the axis of the gun and fires them out of the end at the rate of billions per-second. The ionized atoms would normally go flying in all directions. But the electron bullets, being negatively charged, create a negatively charged fleld near the axis of the gun. This negative fleld attracts the positively charged jons and prevents them from moving in any direction, except along the beam of electrons fired by the gun. One practical advantage of the new gun is its small size. The gun portion of the apparatus is less than an_ inch long. THE EVENING -STAR, WASHINGTON, D. C., MONDAY, Leading Republicans Back Frank to Head Platform Committee Senators Lodge, Capper Also Are Mentioned For Arduous Post By the Associated Press. With prominent Republicans here agreed that the recent report of the Glenn Frank Program Committee would form the basis of the party platform, there was speculation to- day' that Dr. Frank himself might head the convention's Platform Committee. Among others mentioned for the position, one of the most arduous ASK THEM THIS QUESTION: 8 of the meeting at Philadelphia mmcnteh. are Senators Lodge of Massachusetts and Capper of Kan- | si sas. Dr. Frank, former president of the University of Wisconsin, shepherded & group of more than 200 Republi- cans in framing a broad statement of Republican principles which was submitted to the party’s National Committee in February. Leaders here reported that they have been recelving numerous sug- gested planks from party workers throughout the country. Special interest has been shown in the stand the Republicans will take on foreign relations. Senator Cap- per predicted the convention would 80 on record “for all the defense we need,” but would take a firm.stand Ifllm’flt American “meddling in Eu- rope.” The rank report contained & sec- tion along that line. It called for strong defense of the Western Hemi- sphere, and a political and economic In what one magazine do You pay the most attention to advertising? IN 1937 they answered. e counes N 1937, a representative group of airline patrons were asked to name the one mag- azine in which they paid the most attention to ! THREE YEARS AGO ~ pOST e 142% THE SATURDAY EVINING POST FORTUNE \ ] | L —— savire nme coLnr's advertising. Their preference for The Saturday Evening Post was greater by 142 per.cent than for the next magazine mentioned. Aguin, in 1939, the same question was put to another group of airline patrons. And again came the same answer—only this time the Post’s lead jumped to 169 per cent. A month ago the survey was repeated. And as you can see by the 1940 chart, the Post now P&OPI.E PAY ATTENT|ON WHEN YOU . foreign policy *flexible enough that, in a rapidly changing international tuation, we can adopt the measures that will, at any given time, most efficiently serve” American welfare and a more rationally ordered world, Only a handful of delegates re- mains to be chosen for the Repub- lican convention. Twenty-six will be selected at a Texas State con- vention tomorrow, two district: dele- gates will be chosen in Arkansas Wednesday and eigh. delegates at large will be picked in an Illinois convention June 7. Democrats are not so. well ad- vanced in selecting delegates for their July 15 meeting; more than 300 are yet to be chosen. On all sides President Roosevelt’s renomi- nation for a third term is conceded, but his acceptance or rejection re- mains his own secret. London may pull up it 80 miles of abandoned street car lines for scrap steel. LAST YEAR POST AHEAD ™™™ 169% Blitzkrieg Tactics Sound, Officers Told After War Games Molt of Equipment Declared Satisfactery; Needs Pointed Out By the Associated Press, CAMP BEAUREGARD, La., May 27—The caissons were rolling back home today, and with them nearly 70,000 officers and men of the United States Army who have been in the fleld since May 5 in the Nation’s largest peacetime war maneuvers. In a five-heur critique 4,000 officers were told the war games tactics are sound and also confirmed the view of military experts that most of the Army's equipment, transportation and armament is “satisfactory.” Several needs were pointed out, however, A number of officers remained today to study lessons.of the ma- neuvers, while the movement of units to home stations in 32_other States began. e will be traveling for almost two weeks. New Division Called Sound. Maj. Gen. Herbert J. Brees, chief control officer of the war exercises, told the assembled officers that the tests showed the Army's new “tri- angular division” was tactically sound. “It is & small, compaet and highly maneuverable unit,” He said. “The infantry-artillery team is the basic idea and this is sound. The propor- tions of the service are about right. more tanks, more anti-tank and & small reconnaissance unit.” JHe warned that “measures for defense to be taken by ground troops against low-flying aircraft”. seemed to have been forgotten. “Infantry in trucks are helpless” said Gen. Brees. “To subject them to air attack unnecessarily will be sheer murder.” Plane Needs Outlined. ‘The control officer declared the Army needs two types of observation planes, “a slow but highly maneuver- able ship with the best possible visibility for pilot and observer,” and speedy, long-range observation ships, Gen. Brees advocated an increase in the country’s anti-aircraft de- fenses, and said the Army needed more tanks of all kinds and other mechanized weapons. “I emphasize this material because even if we start now there will elapse & considerable time before these items can be produced in sufficient demonstrated that lightning war'The division does need, however, ' quantities” he added. THE SATURDAY EVENING POST " FORTUNE leads the next magazine by 186 per cent—a preference greater than for the next three magasines combined. Each year, no matter what group you ask, more and more people say that they like to read advertising in the Post . .. that they are more likely to see your advertisement there than anywhere else. This ability to get attention for advertising is one of the reasons why the Post last year carried $11,000,000 more advertising revenue than any other magazine. ESQUIRE COLLIER'S PUT IT IN THE PPST & [ | | L THIS YEAR POST i TTTTTAHEAD T 186%