THERE are many different kinds of occasions on which it is necessary for men-of-war to communicate with one another, or with the shore, at short or long ...
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https://www.riss.kr/link?id=O132475900
1899년
eng
학술저널
PHP / Magazines / Feature
0-019 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
THERE are many different kinds of occasions on which it is necessary for men-of-war to communicate with one another, or with the shore, at short or long ...
THERE are many different kinds of occasions on which it is necessary for men-of-war to communicate with one another, or with the shore, at short or long range; and also is it necessary to be able, both in time of peace and in time of war, to send messages from aboard ship to some important naval station several hundred miles distant. The latter feat is accomplished by means of carrier pigeons, which are trained to the performance of their important duties in a marvelous and most interesting way. The former is more easily realized by means of various and more or less complicated systems of signals...