That you may better understand how to get your latitude, we will explain the theory or principle. In Fig. 3 the circle represents the earth, with lines sho...
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1907년
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다운로드다국어 초록 (Multilingual Abstract)
That you may better understand how to get your latitude, we will explain the theory or principle. In Fig. 3 the circle represents the earth, with lines sho...
That you may better understand how to get your latitude, we will explain the theory or principle. In Fig. 3 the circle represents the earth, with lines showing north and south poles, the equator, and the ecliptic, or line on which the earth moves around the sun from left to right. Let A represent your position anywhere on earth the zenith is the point di- j rectly overhead, and the horizon is at right angles. As the earth moves from one side of the sun, as it were, to the other...
THE EVOLUTION OF THE MODERN CARGO STEAMER