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Show New Weapon of War. An "Invisible force" whereby ths United Stntcs would be rendered Ira- pregnablo against attack by land, sea or air, Is claimed by an inventoi who is nt Washington to lay his discovery beforo the secretary of war. By means of his discovery, the Inventor says, an "Invisible force" could bo unleashed against a foreign foe, annihilating whole armies or navies by the press- lng of a button. It Is based en a i natural law which he described as "penetrability, the first law of unrrer- sal movement" |