rhe War over, he devoted himself once again to his research and experiments, and in 1923.perfected his long-distance "beam wireless" system. by which radio signals were confined to one direction through reflectors, much in the way that light is kept in one direct beam from s searchlight, It was used for directing ships in fogs and helping aeroplanes to fly and Jana at night or in bad weather.
In 1981 came the perfection of the wirra-short wave transmission, for transmitting wireless signals between two different apparatus and ju such a concentrated form that interception became exceedingly difficult, This principle was adopted by most of th" world's fighting forces for the transmission of messages between component parts of their forces in open country.
Great scientist and business ran though he was, Marconi affected none of the eccentricities or mannerisms usually associated with such men. He was always immaculately dressed and took a great pride in his per banal appearance.
Text read from the printed page and cleaned; old type leaves the occasional error.