Earth tide Earth tide Earth tide (also known as solid Earth tide, crustal tide, body tide, bodily tide or land tide) is the displacement of the solid earth's surface caused by the gravity of the Moon and Sun. Its main component has meter-level amplitude at periods of about 12 hours and longer. The largest body tide constituents are semi-diurnal, but there are also significant diurnal, semi-annual, and fortnightly contributions. Though the gravitational forcing causing earth tides and ocean tides is the same, the responses are quite different. The larger of the periodic gravitational forces is from the Moon but that of the
The Eclipse, or the Courtship of the Sun and Moon Eclipse" were created with stage machinery, pyrotechnics, substitution splices, superimpositions, dissolves, rolling scenery, and a mannequin for the professor's fall. The Eclipse, or the Courtship of the Sun and Moon The Eclipse: Courtship of the Sun and Moon (originally L'éclipse du soleil en pleine lune) is a French silent film made in 1907 by director Georges Méliès. A professor of astronomy gives a lecture instructing on an impending solar eclipse. The class rushes to an observation tower to witness the event, which features an anthropomorphic Sun and Moon coming together. The Moon and the Sun lick their lips in anticipation