Science: Death Stroke

"In tests already conducted, holes were burned in two-inch steel plates at a distance of one mile. Dead trees have been fired at the same distance and animal life has been snuffed out at distances ranging from two to seven miles. Dummy planes also have been destroyed in air tests. . . . There is no doubt at all that this stroke could be sent in any desired direction for 20 miles."

Utmost secrecy always shrouds the structural details of new munitions of war. This one, announced last week by its inventor, Dr. Edwin R....

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