Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 85
eclip-tic, the greater wouldbe the variation in thelength of the days andnights, and the moreextreme theof the seasons. changes Tides.72. Tides. — The alternate rise and fall of the surface ofthe sea twice in the course of a lunar day, or of twenty-fourhours and fifty-one minutes, is known as the… … 73. Cause of the Tides.— It has been known toseafaring nations from aremote antiquity that thereis a singular connectionbetween the ebb and flowof the tides and the diur-nal motion of the moon. Fig 82* This tidal movement in seeming obedience to the moon wasa mystery until the study of the law of…
Astronomy
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