Word: dahle
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...York has three subway systems. Though I. R. T. is the largest, it is controlled by smaller Brooklyn-Manhattan Transit Corp. Chairman of both is grinning, square-jawed Gerhard Melvin Dahl, onetime director of Cleveland's traction properties, later a trouble-shooting vice president of Chase National Bank. Together the two lines daily hurtle 5,000,000 New Yorkers up & down their rocky island, under and over the East River to Brooklyn and the Harlem River to The Bronx. The city's third system is municipally owned. Though it carries no passengers yet, its empty trains have rumbled...
Last week three young Carnegie Institution men, Drs. Merle Anthony Tuve, Lawrence R. Hafstad and Odd Dahl, through the Physical Review, offered atom crackers a new, manageable howitzer. (They had first mentioned that piece of laboratory ordinance when the Association for the Advancement of Science met in Pasadena last June. Although the scientists could see little of the machine's effect, they nonetheless gave a $1,000 prize to the ingenious young men.) Their machine consists essentially of a tesla coil under oil and a cascading cathode tube. The coil builds up an electrical potential...
...helium nucleus of four protons is clumsy chain-shot for atomic bombardment. Drs. Tuve, Hafstad & Dahl now surpass radium by shooting single protons from their gun. By means of a cloud chamber they are now able to see and photograph the stream of protons from their machine. The effect looks like a stubby shaving brush with bristles 1.6 in. long. Each bristle is the path made by a proton only one 10,000th of null millionth of an inch in diameter...
...three hours, near dusk, a radio officer at the airport hears that the Akron is about to return. The lounging ground crew springs into action. A large cloth panel with the figures "63" is spread on the ground, tells Commander Rosen dahl the ground temperature. Another panel, striped, is spread several hundred feet "upwind" from the mooring mast and marked by two lantern-swinging grounds men. A smoke candle is lighted to show the direction of the ground wind. Presently there is a drone of engines from the east, then the wink of two white bow lights, two green starboard...
...Paper. Dr. Merle A. Tuve, physicist of the Carnegie Institution's department of terrestrial magnetism, read a paper worth $1,000, the annual Association award for outstanding address of the meeting. With three fellow physicists, Drs. L. R. Hafsted and Odd Dahl of Carnegie Institution and Dr. Gregory Breit of New York University, he worked for several years to develop a two-million-volt tube which produces X-rays equivalent to the gamma rays of 182 million dollars worth of radium. Laboratory significance : scientists by using these powerful rays may be able to burst the atom nucleus. Practical significance...