sexta-feira, 15 de abril de 2016

The open SEA - My favorites quotes from the famous Bowditch


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"In common with other planets, the Earth rotates on its axis and revolves in its orbit around the Sun. These motions are the principal source of the daily apparent motions of other celestial bodies. The Earth’s rotation also causes a deflection of water and air currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Because of the Earth’s rotation, high tides on the open SEA lag behind the meridian transit of the Moon."

CHAPTER 15. NAVIGATIONAL ASTRONOMY

BOWDITCH

THE AMERICAN PRACTICAL NAVIGATOR



Leia uma explicação para esta série de 30 posts clicando aqui

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