WAR SECRET REVEALED.
HOW SOUND-RANGING WAS DISCOVERED,!. ■ (Sun Special)-. < LONDON, Wednesday. Sir William Bragg, director of the Royal Institution of Great Britain, has revealed th. 1 secret ,of how a young scientist invented the British. Army'.s war-time system of whereby gun positions and shell bursts were located. The scientist, who .'was an army officer, lay in his hut at daybreak listening to British anti-aircraft guns and also to the sounds of their shell-bursts. He felt the pulsing .throbs through a hole in the hut close to his head. As he lay in his bunk he pondered the matter, and came to the belief that if the pulsings were strong enough to make a sound, they ought to be able to chill a hot electric wire. ; The Daily News discloses the -fact that the young officer, whom Sir William Bragg did not'name, was his own Australian-born son, Professor William Lawrence Bragg.
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Horowhenua Chronicle, 24 September 1928, Page 3
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150WAR SECRET REVEALED. Horowhenua Chronicle, 24 September 1928, Page 3
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