Evening Star Newspaper, June 19, 1931, Page 32

B_16 THE . EVENING STAR. WASHINGTON, V. €. FRIDAY, JUNE 19, 1931 SCIENGE SURPRISED I BY KAAY FANONESf Germans Build Powerful Tube by Disregarding Ac- cepted Laws. By the Associated Press. PASADENA, Ci June 19.—Two Cierman professors 0 four years ago adopted Benjamin Franklin's idea of trying to_harness the thunderbolt have built an X-ray tube that has surprised the scientific world. By disregarding most laws for build- ing X-ray tubes, they took some rub- ber, some paper, some aluminum and some used crankcase oil, and built a little 3-foot instrument more powerful than all the radium in the world, and infinttely greater than the most power- ful X-ray tubes that other scientists considered feasible. g The story of the big tube built by Profs. F. Lange and A. Brasch of the University of Berlin was _unfolded dramatically before the American As- sociation for the Advancement of Sci- ence here yesterday. Leading 4uthorities There. The foreinost authorities in the world on X-ray building were there. W. D. Coolidge of the General Electric labora- tory, M. A. Tuve of the Carnegie In- stitution at Washingtcn and C. C. Lau- ritsen of the California Institute of Technology, all famous experimenters in high-voltage work up to a million volts, had discussed the problems that made X-ray tubes costly and blocked‘ further progress. | The main problem hinged upon the destructive effect of electron glide cur- | rents on the inside of the glass that destroyed costly high-power tubes. Alexander Goetz of Pasadena, read a paper by Profs, Lange and Brasch, who ! present. | were known to the world of by their 1927 experiments in the Alps, where in putting Pranklin's ideas into effect, they established in2 largest high-voltage laboratory in the | world, a natural one, extracting voltages | up to 18,000,000 from the thunder- storms. Paper Astonishing. Gasps of astonishment were heard as | th: paper was read. It told of con- ; struction of a 2,000,000-volt X-ray tube, powered by a surge generator of the ‘ condensor type, producing hard gamma rays equal to 100,000 grams of radium. The very problem which Coolidge, ‘Tuve and Lauritsen had been discussing as an obstacle was used by the Ger- mans as a stepping stone. Instead of glass for the electrons to glide on, the Germans built the tub: out of paper, rubber and rings of aluminum. Not hav- ing the money for expensive transformer oil to immerse it in, they turned to crank case drainings. Then they put the electron glide men- ace of present tubes to work by building 8 greased pole for these electrons to slide down the center of the tube, a porcelain cylinder. The paper concluded with the an- nouncement , that 7,000,000-volt t: were possible, and scizntists believe if ' the experiments of the Germans are carrled to a successful conclusion the | mystery of the cosmic ray will be | solvad and great advances made in the use of X-rays against cancer and other things. 60,000 MEXICANS GO HOME SINCE JAN. 1 Exodus From Southern California! ‘Called Greatest Since Huguenot \ Hegira in 16th Century. By the Associated Pre: LOS ANGELES, June 19.—Char- acterized by some as the greatest exodus since the Huguenot hegira in the six teenth century, between 60,000 and 75 000 Mexicans have left Southern Cali fornia since January 1. Into the picture crept pitiful scenes of Mexican laborers, usually with large families, were stranded on desert wastes or_arid mountainous regions. Rafael de la Colina, Mexican consul | here, said the unemployment situation, coupled with love of their home coun- try, is responsible for the exodus. {mmigration authorities, despite re- peated denials of a campaign to deport alien Mexicans, asserted the few raids on the Los Angzles Mexican center and arrests of aliens had caused an un- founded widespread fear among the for- eign populace. C. B ecretary of the West- | Ts' Assoclation, said vegetable growers of Southern Cali- | fornia and Arizona have become | alarmed over the incessant stream of Mexicans pouring over the border into their native land. “Americans_are so far removed from | the class of work Mexicans do in the fields,” Moore said, “that a labor short- | age during the late Summer harvest | time is sure to result. PROTESTED “LYNCHING” DENIED BY POLICE CHIEF, International Labor Defense Wires Alabama Authorities, but “Vic- tim” Reported at Liberty. By the Assoclated Press ! HUNTSVILLE, Ala., June 19.—The “lynching” of Thomas Jasper, colored, 1s protested by the International Labor Defense, but Chief of Police H. C. Blakemore says Jasper escaped frcm his abductors and is now at liberty. Jasper, under conviction of znnoying a young white girl, was removed from his jail cell by two unidentified white men and has not been seen since, but the police say a woman living near the prison repcrted he escaped the kidnap- ers and fled. i The I~iernational Labor Defense pro- test came from its southern district office and charged that “co-operation of police and lynchers clear.” ‘ e A campaign against the government tax on the talkics has been started in the Irish Free State. | SPECIAL June, July and August WIRE YOUR HOUSE and Acorn; ay g Room bt Shower; Switch; 1 Plug. Room: ! cht Shower; Switch. Kitchen: Ceiling Unit; Switch, 2nd Hall: Rosette: 3-Way Switch. 3 Bedrooms: 2-Light Showers; Pull Chain. ing Unit; Open Shade; Switch, and Bulbs, as Listed, Installed, $100 Telephone NAtional 01402622 and Representative Will Call C. A. Muddiman Co. 911 G St. N.W. Fragrant Perfumes | at Much Less than You Usually Pay. | $10 Size I Raquel's “Fragrance of the Night” $2.95 Discontinued _bot- tle; 2-oz. size $5 Myette Toilet Water; $1.69 8-0z. bottle, discontinued style; choice of Sweet Pea, Jasmin, Chypre, Gardenia. y $3.50 Houbigant’s “Quel- ques Fleurs” 52.49 Toilet Water. ... $3.50 and $4 Houbigant's “Quelques Fleurs” or *“Ideal” Per- $2.49 One-ounce size. Not boxed. 50c La Lete Bath Salts. .. .39 Dram Quantities 10% OFF Caron’s " Nuit de Noel . Sweet Pea Bellodgia .. Acaciosa. Femme de Paris. Desir du Coeur Lentheric Miracle ... Asphodele . Corday’s Toujours Mol. Mitsouko .. Mury's Patricia Coty's 5 L'Aimant, L'Origan.. Paris and Emeraud Jasmin .. 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